Method for acquiring biometric information and electronic device supporting the same

ABSTRACT

An electronic device and method are disclosed herein. The electronic device includes a display, a biometric sensor, and at least one processor. The processor implements the method, including: when a touch input is detected to the display within the biometric sensing area, increase a brightness of a first pixel group within the biometric sensing area to a first brightness level, and execute at least one of maintaining and changing display of a second pixel group outside the biometric sensing area and, wherein the at least one of maintaining and changing display of the second pixel group includes one of: executing a black state in which display through the second pixel group is disabled, and changing a display attribute for the second pixel group such that a load on the second pixel group is reduced.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is based on and claims priority under 35 U.S.C. § 119to Korean Patent Application No. 10-2017-0050039, filed on Apr. 18,2017, in the Korean Intellectual Property Office, the disclosure ofwhich is incorporated by reference herein its entirety.

TECHNICAL FIELD

The present disclosure relates to a biometric sensor operatingtechnology, and more particularly, to obtaining biometric informationthrough a display.

BACKGROUND

In recent years, as the electronic devices equipped with independentoperating systems have been widely supplied, the electronic devices haveprovided various functions that pursue conveniences of the users. As anexample, the electronic devices may support processing of variousfinancial trades or electronic payments by constructing serviceinfrastructures, such as mobile banking, with the financial institutes.In this case, the function operating environments of the electronicdevices may involve sensitive and private information resources, such asprivate user information, financial processing information, or creditcard information. Accordingly, the high-level security policies areutilized for the electronic devices, and recently, biometricauthentication systems based on unique physical or behavior features ofthe users have been mounted on the electronic devices. Among thebiometric authentication systems of various aspects, the fingerprintrecognition technology may provide high security, stability, or useconvenience so that the demands of the fingerprint recognitiontechnology are increasing.

The above information is presented as background information only toassist with an understanding of the present disclosure. No determinationhas been made, and no assertion is made, as to whether any of the abovemight be applicable as prior art with regard to the present disclosure.

SUMMARY

The fingerprint recognition may extract feature points from an image ora video acquired by sensing a fingerprint of the user, and mayauthenticate the user through comparison analysis with a fingerprinttemplate registered in advance. Then, a sensing area (or a sensor) thatrecognizes a fingerprint of the user may be included in a physical keyor a software key disposed in a bezel of the electronic device. In thiscase, the sensing area may become a restriction on a large-area trend ofthe display, and it may not be easy for the body (e.g., a finger) of theuser who grips the electronic device to easily approach the sensingarea.

The present disclosure may provide a method for acquiring fingerprintinformation, by which a base for optimization of approach of the user ora large area of the display may be provided by realizing a fingerprintsensing area with a screen area of a display, and an electronic devicesupporting the same.

The present disclosure may provide a method for acquiring fingerprintinformation, by which high-brightness light emission for a fingerprintsensing area may be controlled by utilizing light by driving of adisplay as a light source utilized for recognition of a fingerprint, andan electronic device supporting the same.

In accordance with an aspect of the present disclosure, there isprovided an electronic device including a display including a pluralityof pixels, a biometric sensor disposed below a biometric informationsensing area of the display, and at least one processor electricallyconnected to the display and the biometric sensor.

The processor may be configured to when an event signal related tosensing of biometric information is received, control a first pixelgroup corresponding to the biometric information sensing area in a highbrightness mode (HBM), and maintain or convert a second pixel groupcorresponding to at least a partial area of a surrounding area of thefirst pixel group in or to a black state or a low load state while thefirst pixel group is controlled in the HBM.

In an aspect of the present disclosure, an electronic device isdisclosed including a display including a plurality of pixels, abiometric sensor disposed below the display such that contacts within abiometric sensing area of the display are detectable by the biometricsensor through the display, at least one processor electricallyconnected to the display and the biometric sensor, wherein the processoris configured to: when a touch input is detected to the display withinthe biometric sensing area, increase a brightness of a first pixel groupwithin the biometric sensing area to a first brightness level, andexecute at least one of maintaining and changing display of a secondpixel group outside the biometric sensing area, wherein the at least oneof maintaining and changing display of the second pixel group includesone of executing a black state in which display through the second pixelgroup is disabled, and changing a display attribute for the second pixelgroup such that a load on the second pixel group is reduced.

In an aspect of the present disclosure, an electronic device isdisclosed including a display, a biometric sensor disposed below thedisplay such that contacts within a biometric sensing area of thedisplay are detectable by the biometric sensor through the display, anda processor electrically connected to the display and the biometricsensor, the processor configured to; alter display within the biometricsensing area to use a first display attribute, responsive to detectingan approach of an object to the biometric sensing area while the firstdisplay attribute is used, altering at least a partial display areaexternal to the biometric sensing area to use a second displayattribute, detect a signal corresponding to the object using thebiometric sensor while the second display attribute is applied to the atleast the partial area, and authenticate the object based at least onthe detected signal.

In an aspect of the present disclosure, an electronic device isdisclosed, including a display, a sensor, a biometric sensor disposedbelow the display such that contacts within a biometric sensing area ofthe display are detectable by the biometric sensor through the display,a display driver integrated circuit (IC) configured to control thedisplay, a processor electrically connected to the display, thebiometric sensor, and the display driver IC, wherein the processor isconfigured to: detect a user input through the biometric sensing area,identify situation information using the sensor, when the situationinformation satisfies a first condition, set at least a portion of thedisplay to use a first display attribute by the display driver IC, andacquire a fingerprint from the detected the user input using thebiometric sensor based on the first display attribute, and when thesituation information satisfies a second condition, set the at least theportion of the display to use a second display attribute by the displaydriver IC, and acquire the fingerprint from the detected user inputusing the biometric sensor based on the second display attribute.

According to various embodiments, convenience for approach of the userfor authentication of a fingerprint may be provided by realizing afingerprint sensing area in a screen area of a display.

According to various embodiments, a sensing efficiency for inputs ofvarious aspects, which are applied to the sensing area, may be improvedby controlling high-bright light emission of the sensing area.

According to various embodiments, generation of afterimages according todeviation between mutual areas may be restrained by controlling thesensing area or the non-sensing area by using an attribute of thedisplay.

In addition, the present disclosure may provide various effects that aredirectly or indirectly recognized.

Other aspects, advantages, and salient features of the disclosure willbecome apparent to those skilled in the art from the following detaileddescription, which, taken in conjunction with the annexed drawings,discloses various embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of certainembodiments of the present disclosure will be more apparent from thefollowing description taken in conjunction with the accompanyingdrawings, in which:

FIG. 1 illustrates an example of an operation of an electronic deviceaccording to an embodiment;

FIG. 2 is a view illustrating a stack structure of some elements of anelectronic device according to an embodiment;

FIG. 3A is a view illustrating a configuration of an electronic deviceaccording to an embodiment;

FIG. 3B is a view illustrating a configuration of an electronic deviceaccording to another embodiment;

FIG. 4A is a view illustrating a first biometric information acquisitionform of an electronic device according to an embodiment;

FIG. 4B is a view illustrating a second biometric informationacquisition form of an electronic device according to an embodiment;

FIG. 4C is a view illustrating a third biometric information acquisitionform of an electronic device according to an embodiment;

FIG. 4D is a view illustrating a fourth biometric informationacquisition form of an electronic device according to an embodiment;

FIG. 4E is a view illustrating a fifth biometric information acquisitionform of an electronic device according to an embodiment;

FIG. 5A is a view illustrating a biometric information acquisition flowof an electronic device according to an embodiment;

FIG. 5B is a view illustrating a biometric information acquisitionmethod of an electronic device according to an embodiment;

FIG. 6A is a view illustrating an operation platform related toacquisition of biometric information of an electronic device accordingto an embodiment;

FIG. 6B is a view illustrating another operation platform related toacquisition of biometric information of an electronic device accordingto an embodiment;

FIG. 6C is a view illustrating another operation platform related toacquisition of biometric information of an electronic device accordingto an embodiment;

FIG. 7 is a drawing illustrating an electronic device in a networkenvironment according to an embodiment;

FIG. 8 is a block diagram illustrating an electronic device according toan embodiment; and

FIG. 9 is a block diagram illustrating a program module according to anembodiment.

Throughout the drawings, it should be noted that like reference numbersare used to depict the same or similar elements, features, andstructures.

DETAILED DESCRIPTION

Hereinafter, various embodiments of the present disclosure are disclosedwith reference to the accompanying drawings. However, the presentdisclosure is not intended to be limited by the various embodiments ofthe present disclosure to a specific embodiment and it is intended thatthe present disclosure covers all modifications, equivalents, and/oralternatives of the present disclosure provided they come within theappended claims and their equivalents. With respect to the descriptionsof the accompanying drawings, like reference numerals refer to likeelements.

The terms and words used in the following description and claims are notlimited to the bibliographical meanings, but, are merely used by theinventor to enable a clear and consistent understanding of the presentdisclosure. Accordingly, it should be apparent to those skilled in theart that the following description of various embodiments of the presentdisclosure is provided for illustration purpose only and not for thepurpose of limiting the present disclosure as defined by the appendedclaims and their equivalents.

It is to be understood that the singular forms “a,” “an,” and “the”include plural referents unless the context clearly dictates otherwise.Thus, for example, reference to “a component surface” includes referenceto one or more of such surfaces.

The term “include,” “comprise,” and “have”, or “may include,” or “maycomprise” and “may have” used herein indicates disclosed functions,operations, or existence of elements but does not exclude otherfunctions, operations or elements.

For example, the expressions “A or B,” or “at least one of A and/or B”may indicate A and B, A, or B. For instance, the expression “A or B” or“at least one of A and/or B” may indicate (1) at least one A, (2) atleast one B, or (3) both at least one A and at least one B.

The terms such as “1st,” “2nd,” “first,” “second,” and the like usedherein may refer to modifying various different elements of variousembodiments of the present disclosure, but are not intended to limit theelements. For instance, “a first user device” and “a second user device”may indicate different user devices regardless of order or importance.For example, a first component may be referred to as a second componentand vice versa without departing from the present disclosure.

In various embodiments of the present disclosure, it is intended thatwhen a component (for example, a first component) is referred to asbeing “operatively or communicatively coupled with/to” or “connected to”another component (for example, a second component), the component maybe directly connected to the other component or connected throughanother component (for example, a third component). In variousembodiments of the present disclosure, it is intended that when acomponent (for example, a first component) is referred to as being“directly connected to” or “directly accessed” another component (forexample, a second component), another component (for example, a thirdcomponent) does not exist between the component (for example, the firstcomponent) and the other component (for example, the second component).

The expression “configured to” used in various embodiments of thepresent disclosure may be interchangeably used with “suitable for,”“having the capacity to,” “designed to,” “adapted to,” “made to,” or“capable of” according to the situation, for example. The term“configured to” may not necessarily indicate “specifically designed to”in terms of hardware. Instead, the expression “a device configured to”in some situations may indicate that the device and another device orpart are “capable of ” For example, the expression “a processorconfigured to perform A, B, and C” may indicate a dedicated processor(for example, an embedded processor) for performing a correspondingoperation or a general purpose processor (for example, a centralprocessing unit (CPU) or application processor (AP)) for performingcorresponding operations by executing at least one software programstored in a memory device.

Terms used in various embodiments of the present disclosure are used todescribe certain embodiments of the present disclosure, but are notintended to limit the other embodiments. The terms of a singular formmay include plural forms unless they have a clearly different meaning inthe context. Otherwise, all terms used herein may have the same meaningsthat are generally understood by a person skilled in the art. Ingeneral, terms defined in a dictionary should be considered to have thesame meanings as the contextual meaning of the related art, and, unlessclearly defined herein, should not be understood differently or ashaving an excessively formal meaning. In any case, even the termsdefined in the present specification are not intended to be interpretedas excluding embodiments of the present disclosure.

An electronic device according to various embodiments of the presentdisclosure may include at least one of a smartphone, a tablet personalcomputer (PC), a mobile phone, a video telephone, an electronic bookreader, a desktop PC, a laptop PC, a netbook computer, a workstation, aserver, a personal digital assistant (PDA), a portable multimedia player(PMP), a Motion Picture Experts Group (MPEG-1 or MPEG-2) Audio Layer 3(MP3) player, a mobile medical device, a camera, or a wearable device.The wearable device may include at least one of an accessory-type device(e.g., a watch, a ring, a bracelet, an anklet, a necklace, glasses, acontact lens, a head-mounted device “HMD”), a textile- orclothing-integrated-type device (e.g., an electronic apparel), abody-attached-type device (e.g., a skin pad or a tattoo), or abio-implantable-type device (e.g., an implantable circuit).

In some various embodiments of the present disclosure, an electronicdevice may be a home appliance. The smart home appliance may include atleast one of, for example, a television (TV), a digital video/versatiledisc (DVD) player, an audio, a refrigerator, an air conditioner, acleaner, an oven, a microwave oven, a washing machine, an air cleaner, aset-top box, a home automation control panel, a security control panel,a television (TV) box (e.g., Samsung HomeSync™, Apple TV™, or GoogleTV™), a game console (e.g., Xbox™ or PlayStation™), an electronicdictionary, an electronic key, a camcorder, or an electronic pictureframe.

In other various embodiments of the present disclosure, an electronicdevice may include at least one of various medical devices (e.g.,various portable medical measurement devices (e.g., a blood glucosemeasuring device, a heart rate measuring device, a blood pressuremeasuring device, a body temperature measuring device, or the like), amagnetic resonance angiography (MRA), a magnetic resonance imaging(MRI), a computed tomography (CT), a scanner, an ultrasonic device, orthe like), a navigation device, a global navigation satellite system(GNSS), an event data recorder (EDR), a flight data recorder (FDR), avehicle infotainment device, electronic equipment for vessels (e.g., anavigation system, a gyrocompass, or the like), avionics, a securitydevice, a head unit for a vehicle, an industrial or home robot, anautomatic teller machine (ATM), a point of sales (POS) device of astore, or an Internet of things (IoT) device (e.g., a light bulb,various sensors, an electric or gas meter, a sprinkler, a fire alarm, athermostat, a streetlamp, a toaster, exercise equipment, a hot watertank, a heater, a boiler, or the like).

According to various embodiments of the present disclosure, anelectronic device may include at least one of a part of furniture or abuilding/structure, an electronic board, an electronic signaturereceiving device, a projector, or a measuring instrument (e.g., a watermeter, an electricity meter, a gas meter, a wave meter, or the like). Anelectronic device may be one or more combinations of the above-mentioneddevices. An electronic device according to some various embodiments ofthe present disclosure may be a flexible device. An electronic deviceaccording to an embodiment of the present disclosure is not limited tothe above-mentioned devices, and may include new electronic devices withthe development of new technology.

Hereinafter, an electronic device according to various embodiments ofthe present disclosure will be described in more detail with referenceto the accompanying drawings. The term “user” used herein may refer to aperson who uses an electronic device or may refer to a device (e.g., anartificial intelligence electronic device) that uses an electronicdevice.

FIG. 1 illustrates an example of an operation of an electronic deviceaccording to an embodiment.

In an embodiment, an electronic device 100 a or 100 b may performauthentication of a fingerprint of the user according to an operationenvironment. For example, if an event, such as release of a lockedscreen, electronic payment based price payment, or financial tradingthrough mobile banking, occurs in the electronic device 100 a or 100 b,the electronic device 100 a or 100 b may authenticate a fingerprint ofthe user based on driving of a scheduled biometric authentication systemor execution of a specific application.

In this regard, referring to FIG. 1, a biometric sensor that supportsthe authentication of the fingerprint of the user may be disposed belowa screen area 121 a or 121 b (or a view area) of a display on theelectronic device 100 a or 100 b. The screen area 121 a of the displayaccording to an embodiment may occupy a portion of a front area of theelectronic device 100 a. Further, the screen area 121 b of the displayaccording to another embodiment may occupy an extent corresponding tothe front area in relation to realization of a full front display of theelectronic device 100 b.

In an embodiment, the biometric sensor may have an extent that is thesame as or similar to the screen area 121 a or 121 b of the display tosense an entire area of the screen area 121 a or 121 b of the display.Further, the biometric sensor may have an extent corresponding to thefirst area to sense a specific first area (or a specific coordinaterange) of the screen area 121 a or 121 b of the display. The first area,for example, may be included in a motion range of a finger of the userwho grips the electronic device 100 a or 100 b, or may be realized in anarea which the finger of the user may easily approach.

According to the above description, a biometric information sensing area(e.g., an area to which fingerprint information of the user is input)related to performance of a function of the biometric sensor may beincluded in at least one of the screen areas 121 a and 121 b of thedisplay. Accordingly, the screen area of the display may be expanded byexcluding at least a portion of an area (e.g., a bezel area) allocatedto the biometric information sensing area from the front surface of theelectronic device 100 a or 100 b. Further, as the biometric informationsensing area is included in one of the screen areas 121 a and 121 b ofthe display, light according to driving of the display may be utilizedas a light source involved in the performance of the function of thebiometric sensor.

Hereinafter, various embodiments of biometric sensor mounting structuresand biometric information (e.g., fingerprint information) acquisitionforms of the electronic device 100 a or 100 b will be described.

FIG. 2 is a view illustrating a stack structure of some elements of anelectronic device according to an embodiment.

Referring to FIG. 2, an electronic device (100 a or 100 b of FIG. 1,hereinafter, generally denoted by 100) may include a cover glass 1, adisplay 120, a biometric sensor (at least one of 133 a to 131 c), and aprinted circuit board 5, which are staked or disposed in a specificsequence. In an embodiment, the electronic device 100 may furtherinclude a housing, of which at least an area is opened, and theabove-mentioned elements of the electronic device 100 may beaccommodated in an interior space of the housing.

The cover glass 1 may be disposed on the display 120 to transmit lightgenerated by the display 120. A user input (e.g., a touch, a gesture, aproximity or hovering) related to an operation or control of theelectronic device 100 may be applied onto the cover glass 1. Forexample, an input (e.g., an input by a touch of a finger) for theacquisition of the fingerprint information of the user may be appliedfor a specific time period. In this regard, the cover glass 1 isinserted into the interior space of the housing, and at least a portionof the cover glass 1 may be exposed to an opened area of the housing. Atleast an area of the cover glass 1 inserted into the interior space ofthe housing may be coupled or bonded to the housing to finish the openedhousing. According to various embodiments, the cover glass 1 is a simplename for an element, and the material of the cover glass 1 is notlimited to glass. For example, the cover glass 1 may include a flexiblefilm material in part in relation to realization of the flexiblecharacteristics of the electronic device 100.

The display 120 (or a display panel) may display various contents (e.g.,a text, an image, a video, an icon, or a symbol) in response to a usercontrol or specific scheduling information. For example, when an eventrelated to biometric authentication of the user (or acquisition ofbiometric information), an interface functioning as a guide for an inputarea of the body (e.g., a finger) of the user may be output. In anembodiment, the display 120 may include a polarizer (not illustrated).The polarizer may selectively transmit light that, among incident light,vibrates in a specific phase axis. Further, the polarizer may delay thephase of the light input to the cover glass 1.

At least one electronic component or electronic (e.g., a processor, amemory, a communication module, a speaker module, a camera module, or acircuit line) related to an operation of a function of the electronicdevice 100 may be mounted on the printed circuit board (or an insulationboard). In an embodiment, a plurality of printed circuit boards 5 may beprovided, and at least some of the printed circuit boards areelectrically connected to each other.

The biometric sensor (at least one of 131 a to 131 c) (or an imagesensor) irradiates the light by the driving of the display 120 to a body(e.g., a finger) of the user that contacts the biometric informationsensing area (or an interface area which the display 120 outputs), andmay acquire biometric information (e.g., a fingerprint image or a video)of the user by detecting light reflected from the body. In this regard,the biometric sensor (at least one of 131 a to 131 c) may be disposed invarious areas on the above-mentioned stack structure of the cover glass1, the display 120, and the printed circuit board 5. For example, thefirst biometric sensor 131 a according to an embodiment may be bonded toa lower side of the cover glass 1 based on a bonding member 2, and maybe disposed between the cover glass 1 and the display 120. In this case,the first biometric sensor 131 a may be disposed, for example, in anarea that is the same as or similar to that of the cover glass 1 tosense an entire area of the cover glass 1 (or the screen area of thedisplay 120). Further, the first biometric sensor 131 a may be realizedby a transparent material in relation to the permittivity of the display120.

The second biometric sensor 131 b according to another embodiment may beincluded in at least one pixel of the display 120. For example, thesecond biometric sensor 131 b may be disposed on the pixel while forminga specific interval from at least one RGB element 226, 227, and/or 228.The third biometric sensor 131 c according to another embodiment may bedisposed in an area between the display 120 and the printed circuitboard 5. In this regard, at least one support member (e.g., a bracket 3a and/or 3 b) for securing a mounting space of the third biometricsensor 131 c, for example, may be disposed at a periphery of an areabetween the display 120 and the printed circuit board 5. In relation toprevention of introduction of foreign substances into the thirdbiometric sensor 131 c, the support member 3 a and/or 3 b may tightlyfinish (or seal) the area between the display 120 and the printedcircuit board 5. In various embodiments, at least one elastic member(e.g., sponge or rubber) 4 a and/or 4 b may be disposed in an adjacentarea (e.g., an upper area) of the third biometric sensor 131 c toprevent an impact due to a physical contact between the third biometricsensor 131 c and the display 120. According to the above description, anarea in which at least one of the first to third biometric sensors 131a, 131 b, and 131 c may at least partially overlap a lower area of thebiometric information sensing area.

FIG. 3A is a view illustrating a configuration of an electronic deviceaccording to an embodiment. FIG. 3B is a view illustrating aconfiguration of an electronic device according to another embodiment.In FIG. 3B, the elements corresponding to the elements described withreference to FIG. 3A may be provided with the same reference numerals,and a repeated description thereof may be omitted.

Referring to FIG. 3A, the electronic device 100 according to anembodiment may further include elements other than the elementsdescribed with reference to FIG. 2. For example, the electronic device100 may include a memory 110, a display 120, a sensor module 130, or atleast one processor 140 and/or 150.

The memory 110 may store a command, information, or data related toperformance of functions of the elements. For example, in relation toacquisition of biometric information (e.g., fingerprint information) ofthe user, the memory 110 may store information (e.g., coordinateinformation) of an interface (e.g., an interface functioning as a guidefor an input area of the body of the user) output by the display 120. Inan embodiment, the memory 110 may include a security area that may beaccessed based in a specific signal or route, and the biometricinformation of the user input to the interface may be stored at least aportion of the security area.

The memory 110 may store at least one program related to an operation ofa function of the electronic device 100. For example, the memory 110 mayinclude at least one of a financial application program (e.g., a mobilebanking application or an electronic payment application) involving auser authentication, an authentication application program that supportsacquisition of biometric information of the user, or a securityapplication program (e.g., Knox) functioning as a security platform forthe biometric information of the user.

The display 120 may include a display driver IC (i.e., “integratedcircuit” or digital display interface “DDI”) 123 or at least one pixelsuch as the first pixel 125. The display driver IC 123 may performsignal processing in relation to driving of the display 120 (or adisplay panel). For example, the display driver IC 123 may deliver asignal corresponding to image or video information delivered from theprocessor 140 and/or 150 to the display 120 at a specific frame rate.The display 120 may output contents by controlling emission of light ofan RGB element included in the at least one pixel such as the firstpixel 125 in response to the signal delivered to the display driver IC123. In this regard, the display driver IC 123 may be electricallyconnected to a circuit line or a switching element included in thedisplay 120.

The sensor module 130 may include at least one biometric sensor 131, atouch sensor 133, or an illumination sensor 135. The at least onebiometric sensor 131 may recognize body characteristics or behaviorcharacteristics of the user. In an embodiment, the biometric sensor 131may further include at least one of an iris recognition sensor, a facerecognition sensor, a voice recognition sensor, or a heart ratemeasuring sensor, including the fingerprint sensor or the image sensor(at least one of 131 a to 131 c of FIG. 2) described above.

The iris recognition sensor, for example, may recognize an iris of theuser by irradiating light of a specific wavelength band to an eyeball ofthe user based on a camera module and analyzing reflected light. As anexample, the iris recognition sensor may identify an iris area bydetecting a structural border based on a color or a brightness thatchanges according to the light irradiated onto the eyeball. The facerecognition sensor may acquire face information by analyzing a video oran image of the user captured through a camera module. For example, theface recognition sensor may recognize the face of the user by extractinga facial area of the user, for example, extraction of a difference ofbrightness or color or a feature point from the video or image andcomparing data (e.g., a pixel value of the image) of the facial areawith specific face data. The voice recognition sensor may extract aunique feature, such as a pronunciation or an accent, from a voiceacquired through a microphone module of the electronic device 100, andmay identify voice information of the user through mapping with thevoice of the user stored in advance. The heart rate measuring sensor,for example, may irradiate light to an area of the body of the user, andmay measure an amount of light reflected according to a blood flow rateof a blood vessel. The heart rate measuring sensor may identify theheart rate of the user by converting a change of the amount of thereflected light to an electrical signal and analyzing a change patternof the electrical signal.

The touch sensor 133 may detect a signal for a user input applied ontothe cover glass 1 (see FIG. 2) and may output an electrical signal. Inthis regard, the touch sensor 133 may include at least one electrodelayer and a control circuit. The control circuit may calculate alocation, an occurrence time, or a duration of a user input by detectinga change (e.g., a change of voltage) of a physical quantity by aphysical contact or a change (e.g., a change of capacitance) of aphysical quantity by induction of charges generated on the electrodelayer. In various embodiments, the touch sensor 133 may be included asan element of the display 120, and a function of the control circuit maybe performed by another element (e.g., the processor 140 and/or 150) ofthe electronic device 100.

The illumination sensor 135 may detect a brightness of a surroundingarea of the electronic device 100. In an embodiment, the illuminationsensor 135 may detect brightness in real time or at a specific cycle,and may deliver the information (e.g., an intensity of illumination) tothe processor 140 and/or 150.

According to an embodiment, the electronic device 100 may include atleast one of a first processor 140 or a second processor 150. The firstprocessor 140 may perform overall control, communication calculation, ordata processing of other elements of the electronic device 100. Thesecond processor 150 (e.g., a low-power processor or a hub device forthe sensor module 130) may perform an independent control from the firstprocessor 140 for other elements of the electronic device 100. Forexample, when the electronic device 100 is in a sleep state, the secondprocessor 150 may process sensing information (e.g., biometricinformation, touch input information, or illumination information)acquired by the sensor module 130 regardless of driving (e.g., wakeup)of the first processor 140. Further, the second processor 150 maycontrol emission of light of at least some pixels of the display 120 tosupport light involved in performance of a function of the biometricsensor 131 (e.g., at least one of 131 a to 131 c of FIG. 2) when anevent related to acquisition of biometric information of the user occursin a sleep state or a low-power operation state of the electronic device100.

Referring to FIG. 3B, each of the elements of the electronic device 100may include a controller (e.g., a first controller 141, a secondcontroller 151, a third controller 124, or a fourth controller 132). Inthis regard, each of the elements of the electronic device 100 may beindependently driven according to an operation of the controllerincluded in the corresponding element to perform a specific function.

In an embodiment, the electronic device 100 may further include a fifthcontroller 161 as a separate element. The fifth controller 161 may be amain controller that may control at least one of the first to fourthcontrollers 141, 151, 124, and 132. Further, the electronic device 100,for example, may set or change any one of the first to fifth controllers141, 151, 124, 132, and 161 as or to the main controller in response tocontrol of setting of the system of the user. In this case, thecontroller set as or changed to the main controller may interact with atleast one of the remaining controllers to control an operation of thefunction of the corresponding controller.

FIG. 4A to 4E are views illustrating various biometric informationacquisition forms of an electronic device according to an embodiment;

As described above, the biometric sensor (e.g., at least one of 131 a to131 c of FIG. 2) may acquire biometric information (e.g., a fingerprintimage or a video) of the user based on light according to operation ofthe display 120 (see FIG. 3A or 3B). In this way, with respect tosecuring of a reliability of the biometric information or improvement ofa sensing efficiency of the biometric sensor (at least one of 131 a to131 c), a brightness (e.g., about 600 nit) that is higher than abrightness (e.g., about 200 nit) in a general operation environment maybe utilized for the light by the display 120. However, when a specificpixel of the display 120 corresponding to the biometric informationsensing area of the biometric sensor (at least one of 131 a to 131 c)emits light at a high brightness, the specific pixel may deterioraterapidly. Further, when the specific pixel locally emits light at a highbrightness, burn-in damage (i.e., an afterimage) due to a deviation(e.g., of the increased brightness) of an attribute of the display fromthe surrounding pixels may be generated.

In relation to the above description, in an embodiment, the processor(140 and/or 150 of FIG. 3A or 3B) of the electronic device 100 (see FIG.3A or 3B) may realize emission of light of high brightness, restraint ofgeneration of an afterimage, or prevention of deterioration of thebiometric information sensing area based on a control of an attribute(e.g., a brightness, a gradation, a supply power, a color, a lightemission duration or a light emission initiation timing) for the display120. Additionally or alternatively, the processor 140 and/or 150 maycontrol high-brightness light emission of the biometric informationsensing area by controlling a specific light emission function (e.g., ahigh brightness mode (HBM) that operates in a high-brightnessenvironment in relation to improvement of visibility, hereinafterreferred to as an HBM function) for the display 120. The HBM function ofthe display 120 may be triggered, for example, when an intensity ofillumination of a surrounding area of the electronic device 100 exceedsa specific value. Hereinafter, various embodiments related tohigh-brightness light emission, avoiding screen burn-in, or preventionof deterioration of the biometric information sensing area will bediscussed with reference to FIGS. 4A to 4E.

Referring to FIG. 4A, when an event related to acquisition of biometricinformation (e.g., fingerprint information) is detected, the processor140 and/or 150 may output an interface 127 a (e.g., a graphical userinterface) that provides visual guidance for an input area for receivingbiometric information in at least an area of the screen area 121 of thedisplay 120. In this operation, the processor 140 and/or 150 may controlat least one pixel corresponding to the screen area 121 of the display120 using a first display attribute (e.g., changing a brightness). Forexample, the processor 140 and/or 150 may control emission of light at aspecific brightness for the at least one pixel. In various embodiments,the interface 127 a is not limited to the shape (e.g., a rectangularshape) illustrated in FIG. 4A, and may be realized in various shapes,such as an ellipse or a fingerprint pattern. Further, the interface 127a may have an extent or a size of a specific ratio with respect to thescreen area 121 of the display 120.

In an embodiment, when receiving a specific event signal, the processor140 and/or 150 may control a second area 129 a of the screen area 121 ofthe display 120, different than the first area (hereinafter, the firstarea is denoted by reference numeral 127 a) corresponding to theinterface 127 a, by using a second display attribute (e.g., agradation). For example, when detecting an approach of an object (e.g.,the body of the user) for the first area 127 a, the processor 140 and/or150 may control at least one pixel corresponding at least a portion ofthe second area 129 a to a specific gradation value (e.g., 0). Based onthis, the processor 140 and/or 150 may realize at least a portion of thesecond area 129 a in a reduced brightness state or even a ‘black’ stateof no or nearly no light emission.

In an embodiment, the black state of the second area 129 a may be causedby high-brightness light emission of the first area 127 a. In thisregard, the above-mentioned display driver IC (DDI) 123 (see FIG. 3A or3B) may be disposed adjacent to the first area 127 a, and accordingly, aload effect may be generated between the first area 127 a and 129 a. The‘load effect’ is a phenomenon in which a power voltage (e.g., ELVDD)drops (e.g., IR drops) the farther a particular area of the display isdisposed from the display driver IC 123. As the display driver IC 123 isadjacent to the first area 127 a and at least a portion of the secondarea 129 a falls into the black state, the first area 127 a may be lessinfluenced by the power voltage drop phenomenon and a brightness of thefirst area 127 may resultantly be improved. For example, a higherbrightness (e.g., about 612 nits) may be realized as compared with thebrightness (or the specific brightness) (e.g., about 406.2 nits) of thecase in which the screen area 121 emits light in a specific colorthroughout the entire area of the screen area 121. In this operation,the processor 140 and/or 150 may further perform control of an HBMfunction for at least a portion of the second area 127 a with referenceto an intensity of illumination of a surrounding area of the electronicdevice 100. For example, when the intensity of illumination exceeds aspecific value, the processor 140 and/or 150 may control the HBMfunction by supplying high power to at least a portion of the first area127 a by using a third display attribute (e.g., supply power). In anembodiment, the load effect according to the disposition structure ofthe display driver IC 123 and realization of a black state of the secondarea 129 a may be realized even in the HBM function of the first area127 a. For example, when the load effect is generated in the HBMfunction of the first area 127 a, the brightness of the first area 127 amay be improved to a brightness (e.g., about 1014.2 nits) that is higherthan the brightness (e.g., about 548.2 nits) when the black state of thesecond area 129 a is excluded.

In this way, in an operation of emitting light at a high brightness bythe first area 127 a, the biometric sensor (at least one of 131 a to 131c) may acquire a signal corresponding to the body of the user, whichcontacts the first area 127 a (or the biometric information sensingarea). The biometric sensor (at least one of 131 a to 131 c) maygenerate biometric information (e.g., a fingerprint image or a video)based on at least a part of the acquired signal, and may perform userauthentication based on the biometric information.

In various embodiments, as a part of another control using an attribute(e.g., a gradation) of the second display, the processor 140 and/or 150may implement the brightness differential without executing a blackstate for the second area 129 a and may control at least a partial areato a low gradation state (e.g., a gray level) through graphicalfiltering. In this case, contents (e.g., an image or a text) may bedisplayed in the second area 129 a of the low gradation state. In anembodiment, the gradation value caused by the realization of the lowgradation state of the second area 129 a may be variably controlledaccording to an intensity of illumination of a surrounding area of theelectronic device 100 detected by the illumination sensor 135 (see FIG.3A or 3B). In this regard, the electronic device 100 may be equippedwith a function of automatically adjusting the brightness of the screenof the display 120 according to the intensity of illumination of thesurrounding area. For example, the electronic device 100 may be equippedwith a brightness adjusting function of adjusting the screen of thedisplay 120 to be brighter when detecting a high intensity ofillumination in the surrounding area and adjusting the screen of thedisplay 120 to be darker when detecting a low intensity of illuminationin the surrounding area. When the intensity of illumination of thesurrounding area of the electronic device 100 exceeds a specific threadrange, the processor 140 and/or 150 may increase or decrease thegradation value for at least a partial area of the second area 129 a toa specific value such that the gradation value corresponds to the brightadjusting function.

In an embodiment, in order to prevent a border area or a border line ofthe first area 127 a and the second area 129 a from being viewed as anafterimage according to the deviation of the display attribute betweenthe areas, the processor 140 and/or 150 may provide a specific displayeffect (e.g., gradation) to an adjacent area (or a surrounding area) ofthe first area 127 a (or the interface). For example, the processor 140and/or 150 may provide an area included in a specific distance or acoordinate range from a periphery of the first area 127 a with thedisplay effect. The processor 140 and/or 150 may divide an area includedin the specific distance or coordinate range into a plurality of areas,and may perform a control such that the gradation (or colorconcentration) between the first area 127 a and the second area 129 abecomes more similar as an area of the plurality of areas is closer to aperiphery of the first area 127 a by using the second display attribute(e.g., a gradation).

In various embodiments, the high-brightness light emission control ofthe biometric information sensing area (or the first area 127 a) usingthe above-mentioned display attribute may be performed based onsituation information related to an operation environment of theelectronic device 100. For example, the processor 140 and/or 150 maycontrol high-bright light emission of the biometric information sensingarea in a first situation in which a specific application program (e.g.,a mobile banking application or an electronic payment applicationaccompanied by a user biometric authentication) is executed. Further, ina second situation in which the intensity of illumination of asurrounding area of the electronic device 100 exceeds a specificthreshold value or a third situation in which a locked screen releasingevent of the electronic device 100 occurs, the processor 140 and/or 150may control high-brightness light emission of the biometric informationsensing area. In various embodiments, the processor 140 and/or 150 maycontrol high-brightness light emission for the biometric informationsensing area based on a temperature of the electronic device 10 itselfor a surrounding area of the electronic device 100.

Hereinafter, in FIGS. 4B to 4D, the screen area 121 of the display 120may operate in a state in which the screen area 121 of the display 120is controlled similarly to the above description with reference to FIG.4A. For example, in FIGS. 4B to 4D, the first areas 127 b, 127 c, and127 d corresponding to the biometric information sensing area may be ina state in which light is emitted at a specific brightness according tothe control using the first display attribute (e.g., a brightness).Further, the second areas 129 b, 129 c, and 129 d may emit light at aspecific gradation value according to a control using the second displayattribute (e.g., a gradation) to be in a black state or a low gradationstate.

Referring to FIG. 4B, the processor 140 and/or 150 may realizehigh-bright light emission and/or prevention of deterioration of thefirst area 127 b by controlling at least one pixel (hereinafter,referred to as a first pixel) corresponding to the first area 127 b byusing another display attribute (e.g., a light emission time). Forexample, the processor 140 and/or 150 may control a light emissioninitiation time of the first pixel. A time period for which the lightemission operation of the first pixel and deterioration of the firstpixel may be in a proportional relationship. Based on this, theprocessor 140 and/or 150 may restrain deterioration of the first pixel125 due to minimization of the light emission time by synchronizing asensing initiation timing of the biometric sensor (at least one of 131 ato 131 c) and a light emission initiation timing of the first pixel 125.In this regard, the biometric sensor (at least one of 131 a to 131 c)may consume a first time period (e.g., 20 to 30 ms) in acquisition offirst biometric information (e.g., a fingerprint image of a firstframe). Further, the biometric sensor (at least one of 131 a to 131 c),for example, may acquire first to third biometric information (e.g.,fingerprint images of first to third frames) in relation to a userauthentication (or acquisition of biometric information) of one time.The processor 140 and/or 150 may calculate a light emission duration(e.g., 200 to 300 ms) of the first pixel 125 in complex consideration ofthe number of acquisitions of biometric information, consumption timesfor the acquisitions of the biometric information, and interval timesbetween acquisitions of the biometric information of the biometricsensor (at least one of 131 a to 131 c). When a user touch event relatedto biometric authentication occurs on the first area 127 b, theprocessor 140 and/or 150 may control light emission of the display 120according to initiation of sensing of the biometric sensor (at least oneof 131 a to 131 c) and the calculated light emission duration afterlapse of a specific time from the occurrence time of the event. Invarious embodiments, the synchronization of a sensing initiation timingof the biometric sensor (at least one of 131 a to 131 c) and a lightemission initiation timing of the first pixel 125 may be also applied tothe operation of the HBM function of the display 120 in the same way orsimilarly.

Referring to FIG. 4C, further to the embodiment using the displayattribute (e.g., a light emission time) described with reference to FIG.4B, implementation may leverage a sensing timing of the biometric sensor(at least one of 131 a to 131 c), and a light emission initiation timingand a light emission duration of the first pixel may be synchronizedbased on generation of a signal for a specific event. In an embodiment,the signal for the specific event may be a signal (e.g., a Vsync signal)that is delivered from the display 120 to the processor 140 and/or 150to receive image information from the processor 140 and/or 150. Ifreceiving a first signal from the display 120, the processor 140 and/or150 may control initiation of sensing for acquiring first biometricinformation (e.g., a fingerprint image of the first frame) of thebiometric sensor (at least one of 131 a to 131 c) and may controlemission of light of the display 120 for a specific period of time.Then, the specific time period for the emission of light of the display120 may be set based on a period of time (e.g., a first period of time(20 to 30 ms)) consumed for acquiring the first biometric information ofthe biometric sensor (at least one of 131 a to 131 c). In this regard, asecond period of time (e.g., 16.7 ms) may be consumed in outputting animage of the first frame for the display 120. Accordingly, the lightemission duration of the display 120 may be set to a period of time(e.g., 33.4 ms) consumed for outputting images of the first and secondframes for the display 120 to supplement a period of time (e.g., thefirst period of time (20 to 30 ms)) consumed for acquiring the firstbiometric information of the biometric sensor (at least one of 131 a to131 c). In an embodiment, the processor 140 and/or 150 may not referencea signal (e.g., a signal generated after output of the image of thefirst frame for the display 120 before the output of the image of thesecond frame) generated (or delivered) for the light emission durationof the display 120 in control of initiation of sensing of the biometricsensor (at least one of 131 a to 131 c) and control of the emission oflight of the display 120. In various embodiments, a period of timeconsumed for acquiring the first biometric information of the biometricsensor (at least one of 131 a to 131 c) may be changed according to thetype of the provided sensor, and correspondingly, also may change thelight emission duration of the display 120.

Based on the above description, if a second signal is received from thedisplay 120, the processor 140 and/or 150 may control initiation ofbiometric detection for acquiring second biometric information of thebiometric sensor (at least one of 131 a to 131 c) and may controlemission of light of the display 120 for a specific period of time(e.g., 33.4 ms). In various embodiments, the synchronization of asensing initiation timing of the biometric sensor (at least one of 131 ato 131 c) and a light emission initiation timing or a light emissionduration of the first pixel 125 (e.g., the pixel corresponding to thebiometric information sensing area) may be also applied to the operationof the HBM function of the display 120 in the same way or similarly.

Referring to FIG. 4D, in an embodiment, the processor 140 and/or 150 maycontrol light emission for the first area 127 d using the first displayattribute (e.g., a brightness) in a fourth situation related to thestate of the body (e.g., a finger) of the user. The fourth situation,for example, may indicate a normal state, a wet state, or a dry state ofthe body part the user that contacts at least a portion of the firstarea 127 d. The processor 140 and/or 150 may control the light-emittingbrightness of the first area 127 d for the acquisitions of the first tothird biometric information of the biometric sensor (at least one of 131a to 131 c) based on the fourth situation information. In an embodiment,the processor 140 and/or 150 may reference a reliability for the firstbiometric information acquired in an arbitrary state of the body of theuser as the fourth situation information. In this regard, when the firstarea 127 d emits light at a first brightness (e.g., 420 nits), theprocessor 140 and/or 150 may determine the reliability of the firstbiometric information (e.g., a fingerprint image of the first frame)acquired by the biometric sensor (at least one of 131 a to 131 c). Forexample, the processor 140 and/or 150 may determine the reliability ofthe first biometric information by mapping the first biometricinformation with a user fingerprint template registered in advance tocalculate a concordance rate. If the reliability (or a concordance rate)of the first biometric information exceeds a specific thresholdpercentage, the processor 140 and/or 150 may determine that body of theuser who contacts the first area 127 d is in a normal state. In thiscase, the processor 140 and/or 150 may maintain the light emission ofthe first area 127 d at the first brightness (e.g., 420 nits) for theacquisitions of the second and third biometric information of thebiometric sensor (at least one of 131 a to 131 c). When the reliabilityof the first biometric information is not more than the thresholdpercentage, the processor 140 and/or 150 may determine that the body ofthe user is in a wet state or a dry state, and may support acquisitionsof the second and third biometric information of the biometric sensor(at least one of 131 a to 131 c) by controlling the light emission ofthe first area 127 d to a second brightness (e.g., 600 nits) that ishigher than the first brightness.

In an embodiment, the processor 140 and/or 150 may control the biometricsensor (at least one of 131 a to 131 c) to further perform acquisitionof fourth biometric information. For example, when the biometricinformation (e.g., the second and third biometric information) acquiredin a state in which the first area 127 d emits light at the secondbrightness (e.g., 600 nits) fails to satisfy the reliability, theprocessor 140 and/or 150 may control performance of acquisition of thefourth biometric information of the biometric sensor (at least one of131 a to 131 c). In this operation, the processor 140 and/or 150 maycontrol the light emission of the first area 127 d to a third brightness(e.g., 700 nits) that is higher than the second brightness. In variousembodiments, the reliability of the processor 140 and/or 150 for thebiometric information may be determined by the biometric sensor (atleast one of 131 a to 131 c) equipped with a calculation function.

Referring to FIG. 4E, the processor 140 and/or 150 may implement thebrightness differential without executing a black state or alow-gradation state using the second display attribute (e.g., agradation) for the above-mentioned second area 129 a, 129 b, 129 c, and129 d (see FIGS. 4A to 4D), and may control the high-brightness lightemission throughout the entire area of the screen area 121 of thedisplay 120.

In an embodiment, the processor 140 and/or 150 may control thehigh-brightness light emission of the screen area 121 by controlling atleast one pixel corresponding to the screen area 121 by using the thirddisplay attribute (e.g., supply power). For example, the processor 140and/or 150 may increase the light emission brightness by applying a highvoltage to at least one pixel corresponding to the screen area 121during a cycle in which an image of a first frame is output by thedisplay 120. Further, the processor 140 and/or 150 may control thehigh-brightness light emission of the screen area 121 by performing acontrol of minimizing an AMOLED off ratio (AOR) that is present on thecycle in which the image of the first frame is output. The AOR may meana section (or a ratio of the cycle for restricting the supply ofelectric power to the display 120 for a specific period of time on thecycle in which the display 120 outputs an image in unit of a frame. Theprocessor 140 and/or 150 may increase a light emission time period of apixel corresponding to the screen area 121 by minimizing the AOR. Thelight emission time period and the brightness of the pixel areproportional to each other, and the processor 140 and/or 150 may realizethe high-brightness light emission by increasing the light emission timeperiod of the pixel corresponding to the screen area 121. In anembodiment, the processor 140 and/or 150 may perform a power/voltagecontrol for the pixel of the screen area 121 at a frame image outputcycle of the display 120.

In various embodiments, the processor 140 and/or 150 may control lightemission colors of the first areas 127 a, 127 b, 127 c, and 127 dcorresponding to the biometric information sensing area by using anotherdisplay attribute (e.g., a color). In this regard, because the life spanof the blue element of the RGB elements 226, 227, and 228 (see FIG. 2)is shorter than those of the other elements, the light emission color ofthe pixel may tend to be transited to a yellow color (red+green) whenthe display 120 continues to be driven. Accordingly, an afterimage dueto a color deviation may be generated between the first areas 127 a, 127b, 127 c, and 127 d and the second areas 129 a, 129 b, 129 c, and 129 dcorresponding to the non-sensing area. In order to restrain anafterimage from being generated between the first areas 127 a, 127 b,127 c, and 127 d and the second areas 129 a, 129 b, 129 c, and 129 d,the processor 140 and/or 150 may control the light emission colors ofthe first areas 127 a, 127 b, 127 c, and 127 d such that the lightemission colors of the first areas 127 a, 127 b, 127 c, and 127 d aresimilar to the colors of the second areas 129 a, 129 b, 129 c, and 129 d(or colors that reduce a color deviation).

An electronic device according to various embodiments includes a displayincluding a plurality of pixels, a biometric sensor disposed below abiometric information sensing area of the display, and at least oneprocessor electrically connected to the display and the biometricsensor.

According to various embodiments, the processor may, when an eventrelated to sensing of biometric information is received, control a firstpixel group corresponding to the biometric information sensing area in ahigh brightness mode (HBM), and maintain or convert a second pixel groupcorresponding to at least a partial area of a surrounding area of thefirst pixel group in or to a black state or a low load state while thefirst pixel group is controlled in the HBM.

According to various embodiments, the processor may control the firstpixel group in the HBM by applying high electric power to the firstpixel group.

According to various embodiments, the processor may control the secondpixel group in the lower load state by applying a specific gradationvalue to the second pixel group.

According to various embodiments, the processor may allow the firstpixel group to emit light at a brightness at which biometric informationis sensed, by maintaining or converting the second pixel group in or tothe black state or the low load state to realize a load effect in thefirst pixel group.

According to various embodiments, the processor may acquire a signal foran object that approaches the biometric information sensing area,generate image information corresponding to the object based on at leasta part of the signal, and perform authentication of the object based onthe image information.

According to various embodiments, the electronic device may furtherinclude an illumination sensor configured to detect an intensity ofillumination for a surrounding area.

According to various embodiments, the processor may, when an intensityof illumination of a surrounding area of the electronic device exceeds aspecific value, control the first pixel group in the HBM.

According to various embodiments, the processor may control minimizationof an AMOLED off ratio (AOR) related to driving of the display while thefirst pixel group is controlled in the HBM.

An electronic device according to various embodiments includes a displayhaving a biometric information sensing area at least a portion thereof,a biometric sensor disposed below the biometric information sensing areaof the display, and a processor electrically connected to the displayand the biometric sensor, and the processor is configured to control thedisplay including the biometric information sensing area by using afirst display attribute, detect an approach of an object for thebiometric information sensing area while the display is controlled byusing the first display attribute, in response to the detection, controlat least a partial area of a surrounding area of the biometricinformation sensing area of the display by using a second displayattribute, acquire a signal corresponding to an object that approachesthe biometric information sensing area by using the biometric sensorwhile the at least a partial area is controlled by using the seconddisplay attribute, and perform authentication of the object at leastpartially based on the signal.

According to various embodiments, the processor may further control atleast a partial area of the biometric information sensing area by usinga third display attribute in response to the detection, and acquire thesignal while the at least a partial area of the biometric informationsensing area is further controlled by using the third display attribute.

According to various embodiments, the processor may control a brightnessor a gradation of the display, or an intensity of electric powersupplied to the display as at least a part of control using the firstdisplay attribute, the second display attribute, or the third displayattribute.

According to various embodiments, the processor may generate imageinformation corresponding to the object based on at least a part of thesignal, and perform the authentication based on at least a part of theimage information.

According to various embodiments, the processor may at a part of theoperation of generating the image information, when the imageinformation satisfies the specific condition, control at least a part ofthe biometric information sensing area further by using the firstdisplay attribute.

According to various embodiments, the processor may acquire a secondsignal corresponding to the object while the at least a partial area ofthe biometric information sensing area is controlled further by usingthe first display attribute, generate a second piece of imageinformation corresponding to the object based on the second signal, andextruding the generated image information and performing theauthentication based on the second image information.

According to various embodiments, the electronic device may furtherinclude an illumination sensor configured to detect an intensity ofillumination.

According to various embodiments, the processor may, in relation to theoperation of performing the authentication, perform a control using thesecond display attribute or the third display attribute based on atleast a part of the intensity of illumination detected by using theillumination sensor.

According to various embodiments, the processor may synchronize anoperation time of the biometric sensor for acquiring the signal and anoperation time at which at least one pixel corresponding to thebiometric information sensing area emits light.

According to various embodiments, the processor may adjust an AMOLED offratio (AOR) related to driving of the display while at least a partialarea of the biometric information sensing area is controlled by usingthe third display attribute.

According to various embodiments, the processor may, as at least a partof the operation of controlling the display by using the first displayattribute, display a user interface at least a portion of the biometricinformation sensing area, and as at least a part of the operation ofcontrolling the display by using the second display attribute, control asurrounding area of the user interface.

An electronic device according to various embodiments includes a displayhaving a biometric information sensing area at least a portion thereof,a biometric sensor disposed below the biometric information sensing areaof the display, and a display driver IC configured to control thedisplay, and a processor electrically connected to the display, thebiometric sensor, and the display driver IC, and the processor isconfigured to acquire a user input through the biometric informationsensing area, identify situation information related to the electronicdevice, when the situation information satisfies a first condition, setat least a partial area of the display to a first display attribute byusing the display driver IC, and acquire fingerprint informationcorresponding to the user input based on the first display attribute byusing the biometric sensor, when the situation information satisfies asecond condition, set at least a partial area of the display as a firstdisplay attribute by using the display driver IC, and acquire thefingerprint information corresponding the user input based on the seconddisplay attribute by using the biometric sensor.

According to various embodiments, the electronic device may furtherinclude an illumination sensor or a temperature sensor.

According to various embodiments, the processor may, as at least a partof the situation information, identify an intensity of illuminationacquired through the illumination sensor or a temperature acquiredthrough the temperature sensor.

According to various embodiments, the processor may, as at least a partof the operation of identifying the situation information, identifyreception of a request for acquiring the biometric information.

An electronic device according to various embodiments includes a displayincluding a plurality of pixels, a biometric sensor disposed below thedisplay such that contacts within a biometric sensing area of thedisplay are detectable by the biometric sensor through the display andat least one processor electrically connected to the display and thebiometric sensor.

According to various embodiments, the processor may, when a touch inputis detected to the display within the biometric sensing area, increase abrightness of a first pixel group within the biometric sensing area to afirst brightness level, and execute at least one of maintaining andchanging display of a second pixel group outside the biometric sensingarea, wherein the at least one of maintaining and changing display ofthe second pixel group includes one of: executing a black state in whichdisplay through the second pixel group is disabled, and changing adisplay attribute for the second pixel group such that a load on thesecond pixel group is reduced.

According to various embodiments, wherein increasing the brightness ofthe first pixel group includes increasing an amount of electric powersupplied to the first pixel group.

According to various embodiments, wherein the load on the second pixelgroup is reduced by changing a specific gradation value of display forthe second pixel group.

According to various embodiments, the electronic device may furtherinclude a display driver integrated circuit (IC) disposed adjacent tothe biometric sensing area of the display, wherein the display isfurther configured such that voltage supplied to regions of the displayis reduced according to a distance a particular region is disposed fromthe display driver IC, and wherein the at least one of maintaining andchanging display of the second pixel group to the executed black stateor the changed display attribute causes increase of the brightness ofthe first pixel group based on the reduced voltage.

According to various embodiments, the processor may, detect a signalindicating an approach of an object to the biometric sensing area of thedisplay, retrieve previously-stored image information corresponding tothe object based on at least a part of the signal and performauthentication of the object by comparison with the retrieved imageinformation.

According to various embodiments, the electronic device may furtherinclude an illumination sensor configured to detect an intensity ofillumination, wherein the brightness of a first pixel group is increasedto the first brightness level when an intensity of environmentalillumination as detected by the illumination sensor exceeds aprespecified value.

According to various embodiments, the processor may, controlminimization of an AMOLED off ratio (AOR) for the display while thebrightness of the first pixel group is increased to the first brightnesslevel.

An electronic device according to various embodiments includes adisplay, a biometric sensor disposed below the display such thatcontacts within a biometric sensing area of the display are detectableby the biometric sensor through the display and a processor electricallyconnected to the display and the biometric sensor.

According to various embodiments, the processor may, alter displaywithin the biometric sensing area to use a first display attribute,responsive to detecting an approach of an object to the biometricsensing area while the first display attribute is used, altering atleast a partial display area external to the biometric sensing area touse a second display attribute, detect a signal corresponding to theobject using the biometric sensor while the second display attribute isapplied to the at least the partial area and authenticate the objectbased at least on the detected signal.

According to various embodiments, the processor may, responsive todetecting the signal, altering display within at least a partial area ofthe biometric sensing area to use a third display attribute, wherein thesignal is detected while display within the at least partial area of thebiometric sensing area is altered using the third display attribute.

According to various embodiments, wherein the first display attribute,the second display attribute and the third display attribute eachinclude at least one of modifying a brightness, modifying a gradation,and modifying a level of electric power supplied to the display.

According to various embodiments, the processor may, retrievepreviously-stored image information corresponding to the object based onat least a part of the detected signal and perform authentication bycomparison with at least a part of the retrieved image information.

According to various embodiments, wherein when the image information isretrieved, display within the biometric sensing area is altered to usethe first display attribute if the image information satisfies aspecific condition.

According to various embodiments, the processor may, detect a secondsignal corresponding to the object while the first display attribute isapplied to the at least the partial area, retrieve a second imageinformation corresponding to the object based on the second signal,wherein authenticating the object is further performed using the secondimage information.

According to various embodiments, the electronic device may furtherinclude an illumination sensor configured to detect an intensity ofillumination, the processor may, apply the second display attribute orthe third display attribute to a region of the display based at least inpart of the intensity of illumination detected by the illuminationsensor.

According to various embodiments, wherein a time at which the signalcorresponding to the object is detected is synchronized to a time atwhich at least one pixel disposed within the biometric sensing area iscontrolled to emit light.

According to various embodiments, the processor may, adjust an AMOLEDoff ratio (AOR) for the display while the at least the partial area ofthe biometric sensing area is altered to use the third displayattribute.

According to various embodiments, wherein altering display within thebiometric sensing area to use the first display attribute furtherincludes display a graphic element within at least a portion of thebiometric sensing area, and wherein the partial display area external tothe biometric sensing area at least partially surrounds the biometricsensing area.

An electronic device according to various embodiments includes adisplay, a sensor, a biometric sensor disposed below the display suchthat contacts within a biometric sensing area of the display aredetectable by the biometric sensor through the display, a display driverintegrated circuit (IC) configured to control the display and aprocessor electrically connected to the display, the biometric sensor,and the display driver IC.

According to various embodiments, the processor may, detect a user inputthrough the biometric sensing area, identify situation information usingthe sensor, when the situation information satisfies a first condition,set at least a portion of the display to use a first display attributeby the display driver IC, and acquire a fingerprint from the detectedthe user input using the biometric sensor based on the first displayattribute, and when the situation information satisfies a secondcondition, set the at least the portion of the display to use a seconddisplay attribute by the display driver IC, and acquire the fingerprintfrom the detected user input using the biometric sensor based on thesecond display attribute.

According to various embodiments, wherein the sensor includes at leastone of an illumination sensor and a temperature sensor, and whereinidentifying the situation information further comprises at least one ofdetecting an intensity of illumination through the illumination sensorand detecting a present temperature through the temperature sensor.

According to various embodiments, wherein the situation information isidentified responsive to detecting a request to acquire the biometricinformation.

According to various embodiments, an electronic device may include adisplay including a plurality of pixels, a biometric sensor disposedbelow the display such that contacts within a biometric sensing area ofthe display are detectable by the biometric sensor through the display,and at least one processor electrically connected to the display and thebiometric sensor, wherein the processor is configured to control thedisplay to display a screen including at least one object for scanning afinger print of a user on the biometric sensing area of the display,whena touch input is detected on the at least one object at the biometricsensing area of the display, control the display to emit light withpredetermined brightness by using a first pixel group within thebiometric sensing area for scanning the finger print, and display atleast one object and/or background by using pixels within an area otherthan the biometric sensing area, wherein the first pixel group withinthe biometric sensing area emit light brighter than any pixel within anarea other than the biometric sensing area when the touch input isdetected on the at least one object at the biometric sensing area of thedisplay.

According to various embodiments, wherein the background by using pixelswithin an area other than the biometric sensing area comprisessubstantial black background.

According to various embodiments, wherein the displaying at least oneobject and/or background by using pixels within an area other than thebiometric sensing area comprising displaying substantial blackbackground without at least one object.

According to various embodiments, wherein a color of the background hasbeen changed to substantial black for scanning the finger print of theuser prior to emitting light with the predetermined brightness by usingthe first pixel group within the biometric sensing area.

FIG. 5A is a view illustrating a biometric information acquisition flowof an electronic device according to an embodiment.

Referring to FIG. 5A, in operation 501, the electronic device 100 (seeFIG. 3A or 3B) may perform biometric authentication (e.g., a fingerprintauthentication) for a user according to a specific operationenvironment. If an event related to, for example, release of a lockedscreen, electronic payment based price payment, or financial tradingthrough mobile banking, occurs, the electronic device 100 may requestauthentication using at least a portion (e.g., a finger) of the body ofthe user.

In operation 503, the display 120 (see FIG. 3A or 3B) of the electronicdevice 100 may output an interface (i.e., a visual display element oricon) that provides visual guidance identifying an appropriate inputarea for biometric information (e.g., fingerprint information),displayed to at least a portion of the screen area in response to theevent. In this operation, the screen area of the display 120 may operatein a state in which light is emitted at a specific brightness (i.e., afirst brightness) according to a control of the processor 140 and/or 150(see FIG. 3A or 3B) using the first display attribute (e.g., thebrightness). In an embodiment, the interface may also be displayedhaving a specific ratio relative to the screen area of the display 120,and may include various visual shapes and designs, such as a rectangularshape, an elliptical shape, or a fingerprint pattern.

In operation 505, the processor 140 and/or 150 (see FIG. 3B) may detecta user input at least an area of the displayed interface (i.e., theelement or icon). For example, the processor 140 and/or 150 may receivea signal corresponding to the user input from the touch sensor 133 (FIG.3A or 3B), and determine that an input is being applied to an area ofthe interface that is maintained for a time exceeding a pre-specifiedperiod of time. Accordingly, the input may be determined to be a userinput relevant to the requested biometric authentication.

In operation 507, the processor 140 and/or 150 may alter at least somepixels of the display 120 using the second display attribute (e.g., agradation) in response to the user input. For example, the processor 140and/or 150 may alter at least one pixel corresponding to a screen area(hereinafter, referred to as a non-sensing area) outside the interfacearea such that the at least one pixel takes on a specific gradationvalue. As a result, the non-sensing area may be switched to a blackstate or a low gradation state. In this case, based on theabove-described load effect, the brightness of the interface area may beimproved given that it is less influenced by the power/voltage dropphenomenon described above.

According to an embodiment, in operation 507, the processor 140 and/or150 may further control of synchronizing a sensing timing of thebiometric sensor (at least one of 131 a to 131 c of FIG. 2) and at leastone of a light emission initiation timing corresponding to the interfacearea and a light emission duration. Further, when the intensity ofillumination for a surrounding area of the electronic device 100 exceedsa specific value, the processor 140 and/or 150 may further control theHBM function of the display 120 by applying a high power to at least aportion of the interface area by using the third display attribute(e.g., supply power).

In various embodiments, a control of the display 120 of the processor140 and/or 150 such as operation 507 may be performed based on situationinformation related to an operation environment of the electronic device100. For example, the processor 140 and/or 150 may perform a control ofthe display 120 based on situation information on at least one of afirst situation in which a specific application program (e.g., a mobilebanking application or an electronic payment application) is executed, asecond situation in which the intensity of illumination of theelectronic device 100 satisfies a specific condition (e.g., more than athreshold value), and a third situation in which a locked screenreleasing event of the electronic device 100 occurs. Further, theprocessor 140 and/or 150 may perform a control of the display 120 in asituation in which the temperature sensed from the electronic device 100satisfies a specific condition (e.g., more than a specific temperature).When acquiring information on at least one of the first to thirdsituations, the processor 140 and/or 150 may control high-brightnesslight emission of the interface area (or a biometric information sensingarea) by using at least one display attribute (e.g., a brightness, agradation, supply power, a color, light emission duration or a lightemission initiation timing). In an embodiment, in a situation in whichthe biometric information is completely acquired or it is unnecessary toacquire the biometric information, the processor 140 and/or 150 mayperform a control such that the attribute of the entire area of thescreen area of the display 120 is similar while excluding a localcontrol of the screen area of the display 120.

In operation 509, the processor 140 and/or 150 may determine whether therequisite biometric information was detected by the biometric sensor (atleast one of 131 a to 131 c) from the user input. When biometricinformation (e.g., a fingerprint image or a video) from the biometricsensor (at least one of 131 a to 131 c) fails to be adequately detected,the processor 140 and/or 150 may prompt a user to re-input the inoperation 511 and returning to operation 503 in which the interface isoutput again.

When biometric information is successfully detected by the biometricsensor (at least one of 131 a to 131 c), in operation 513, the processor140 and/or 150 may determine a state of the delivered biometricinformation. For example the processor 140 and/or 150 may determine astate of the biometric information when calculating a concordance rateby mapping the delivered biometric information (e.g., a fingerprintimage) and a user fingerprint template registered in advance. If theconcordance rate is less than a specific threshold percentage, theprocessor 140 and/or 150 may determine that the state of the body (e.g.,a finger) of the user is a wet state or a dry state that is not suitablefor acquiring the biometric information due to contamination. In thiscase, the processor 140 and/or 150 may return to an operation ofcontrolling the display 120 in operation 515 and, as in operation 507,repeat the process of increasing the brightness of the interface area tosupport reacquisition of the biometric information of the biometricsensor.

FIG. 5B is a view illustrating a biometric information acquisitionmethod of an electronic device according to an embodiment.

In operation 517, the processor 140 and/or 150 of the electronic device100 may output an interface corresponding to the biometric informationsensing area at least a portion of the screen area of the display 120 inresponse to detecting an event (e.g., execution of an applicationaccompanied by release of a locked screen, or a successful userauthentication) related to a user biometric authentication. Theprocessor 140 and/or 150 may control the screen area of the display 120including the interface to be displayed at a specific brightness usingthe first display attribute (e.g., a brightness).

In operation 519, the processor 140 and/or 150 may detect an object(e.g., the body of the user) approaching and/or contacting the interface(i.e., the display element indicating a location of the biometricinformation sensing area) based on performance (e.g., detection of asignal for an interface area) of a function of the touch sensor 133 (seeFIG. 3A to 3B).

When the touch sensor 133 detects an approach or contact of an objectfor the interface area in operation 519, the processor 140 and/or 150may modify operation of at least one pixel corresponding to asurrounding area of the interface area (or the biometric informationsensing area) in operation 521. For example, the processor 140 and/or150 may allocate a specific gradation value to at least one pixelcorresponding to a surrounding area outside the element by using thesecond display attribute (e.g., a gradation). In this case, thesurrounding area may thus operate in a black state or a low gradationstate, by means of the processes described above.

In operation 525, the processor 140 and/or 150 may acquire the biometricinformation (i.e., a biometric signal or value) corresponding to theauthentication object (e.g., the body of the user) that is applied tothe interface area using (e.g., sensing of fingerprint information orcreation of a fingerprint image) the biometric sensor (at least one of131 a to 131 c of FIG. 2). In operation 525, the processor 140 and/or150 may perform authentication by comparing the acquired biometricsignal (i.e., the biometric information) with pre-stored biometricinformation, such as a fingerprint template stored previously, tocalculate a matching rate.

A method for acquiring biometric information of an electronic deviceusing a biometric information sensing area formed in a display areaaccording to various embodiments includes controlling the displayincluding the biometric information sensing area by using a firstdisplay attribute, detecting an approach of an object for the biometricinformation sensing area while the display is controlled by using thefirst display attribute, in response to the detection, controlling atleast a partial area of a surrounding area of the biometric informationsensing area of the display by using a second display attribute,acquiring a signal corresponding to an object that approaches thebiometric information sensing area by using the biometric sensor whilethe at least a partial area is controlled by using the second displayattribute, and performing authentication of the object at leastpartially based on the signal.

According to various embodiments, the method may include controlling atleast a partial area of the biometric information sensing area by usinga third display attribute in response to the detection, and while the atleast a partial area of the biometric information sensing area iscontrolled by using the third display attribute, acquiring a signalcorresponding to the object that approaches the biometric informationsensing area.

According to various embodiments, at least one of the controlling usingthe first display attribute, the controlling using the second displayattribute, and the controlling using the third display attribute mayinclude controlling a brightness or a gradation of the display, or anintensity of electric power supplied to the display.

According to various embodiments, the method may further includecreating first image information corresponding to the object based on atleast a part of the signal.

According to various embodiments, the operation of creating the firstimage information may include, when the image information satisfies aspecific condition, controlling the at least a partial area of thebiometric information sensing area by further using the first displayattribute, acquiring a second signal corresponding to the object whilethe at least a partial area of the biometric information sensing area iscontrolled further by using the first display attribute, creating secondimage information corresponding to the object based on the secondsignal, and excluding the first image information and performing theauthentication based on the second image information.

According to various embodiments, the method may further includedetecting an intensity of illumination of a surrounding area of theelectronic device.

According to various embodiments, at least one of the controlling usingthe second display attribute and the controlling using the third displayattribute may include performing a control of the display based on atleast a part of the intensity of illumination.

According to various embodiments, the method may further includesynchronizing an operation time of the biometric sensor and an operationtime period for which at least one pixel corresponding to the biometricinformation sensing area.

According to various embodiments, the controlling using the thirddisplay attribute may include adjusting an AMOLED off ratio (AOR)related to driving of the display.

FIGS. 6A to 6C are views illustrating various operation platformsrelated to acquisition of biometric information of an electronic deviceaccording to an embodiment.

Referring to FIG. 6A, when an event (e.g., a manipulation of a physicalkey (a power key or a volume key) disposed in an area of the electronicdevice 100) related to release of a locked screen occurs on theelectronic device 100, the processor 140 and/or 150 (see FIG. 3A or 3B)may execute a specific user authentication system (e.g., a biometricauthentication system). The processor 140 and/or 150 may output aninterface 127 that functions as a guide for a biometric informationinput area in at least an area of the screen area 121 of the display. Inthis operation, the screen area 121 of the display may be in a state inwhich light is emitted at a specific brightness according to a controlof the processor 140 and/or 150 using the first display attribute (e.g.,the brightness).

According to an embodiment, the processor 140 and/or 150 may controldriving of the display 120 (see FIG. 3A or 3B) after detecting a userinput (e.g., a touch by a specific finger) applied to at least a portionof the area for the interface 127 (e.g., a first area). For example,when the user input is applied while exceeding a specific time, theprocessor 140 and/or 150 may control a gradation for the screen area 121of the display 120 by using the second display attribute (e.g., agradation) at the excess time point or within a range of a specific timefrom the excess. The processor 140 and/or 150 may control a gradationvalue of at least one pixel corresponding to the second area 129 suchthat the second area 129 of the screen area 121 of the display 120,except for the first area for the interface 127, is in a black state ora low gradation state. In this case, the first area for the interface127 may emit light at a high brightness based on the above-mentionedload effect. In this operation, the processor 140 and/or 150 may controlat least one of a light emission initiation timing and a light emissionduration of at least one pixel corresponding to the first area for theinterface 127 by using another display attribute (e.g., a light emissiontime) and may further perform a control of synchronizing the at leastone of the light emission initiation timing and the light emissionduration of the at least one pixel with a sensing timing of thebiometric sensor (at least one of 131 a to 131 c of FIG. 2).

In an embodiment, the biometric sensor (at least one of 131 a to 131 c)may acquire biometric information (e.g., a fingerprint image) of theuser a specific number of times (e.g., three times or more) for aspecific sensing time range (e.g., 60 to 90 ms). The processor 140and/or 150 may analyze the biometric information of the user acquired bythe biometric sensor (at least one of 131 a to 131 c) by mapping thebiometric information of the user acquired by the biometric sensor (atleast one of 131 a to 131 c) with a user fingerprint template stored inthe memory 110 (see FIG. 3A or 3B) in advance. When at least one pieceof the acquired biometric information coincides with the fingerprinttemplate at a specific ratio or more, the processor 140 and/or 150 mayrelease the locked screen of the electronic device 100.

Referring to FIG. 6B, the processor 140 and/or 150 may execute userauthentication (e.g., a biometric authentication) in response toexecution of an application program supporting an electronic paymentfunction and/or a financial trade function of the electronic device 100.In this case, one or more first contents 10 a related to the electronicpayment or the financial trade (e.g., a payment account represented bythe displayed credit card) and second contents 20 related to a requestfor a biometric authentication (e.g., a confirmation for requestingbiometric authentication) may be displayed on the screen area 121 of thedisplay 120. In this operation, the processor 140 and/or 150 may controllight emission of the screen area 121 including the first contents 10 aand the second contents 20 by using the first display attribute (e.g., abrightness). In an embodiment, if a user input (e.g., a touch) isapplied onto the second contents 20, or a specific period of timeelapses from the display of the second contents 20, the processor 140and/or 150 may alter the display 120. For example, the processor 140and/or 150 may display a third content 10 b generated by reducing thefirst contents 10 a using a specific reduction ratio and an interfaceelement 127 which provides a visual guide for input of biometricinformation of the user at least a portion of the screen area 121. In anembodiment, in the screen area 129, except for the third contents 10 band the interface 127, at least one pixel such as the first pixel 125corresponding to a control of the processor 140 and/or 150 using thesecond display attribute (e.g., a gradation) may be altered to display ablack state. In this case, the area of the interface 127 may emit lightat a high brightness leveraging the load effect. The processor 140and/or 150 may execute a series of processes for processing theelectronic payment and/or the financial trade according to successfulauthentication of the biometric information (e.g., fingerprintinformation), based on a match with a user fingerprint stored inadvance.

Further, as illustrated in FIG. 6C, after a user input is applied ontothe second contents 20, or a specific period of time elapses from thedisplay of the second contents 20, the processor 140 and/or 150 mayperform a control by using the second display attribute (e.g., agradation) for the screen area 121 that emits light at specificbrightness. For example, the processor 140 and/or 150 may control atleast one pixel corresponding to the screen area, except for theinterface 127, in a low gradation state. The gradation value caused bythe control of the low gradation state may be variably controlled tocorrespond to a bright adjusting function (e.g., a function ofautomatically adjusting the brightness of the screen of the display 120according to the intensity of illumination detected by the illuminationsensor) of the electronic device 100. In an embodiment, the processor140 and/or 150 may perform a control such that the screen area 129, onwhich a lower gradation has been performed, is in a black state, at atime point at which the body of the user contacts the area of theinterface 127 for a specific period of time or more and the sensing ofthe biometric sensor (at least one of 131 a to 131 c) is performed.Accordingly, at the time point of the sensing of the biometric sensor(at least one of 131 a to 131 c), the area of the interface 127 may emitlight at a high brightness due to the above-mentioned load effect. Whenthe performance of the function (e.g., sensing) of the biometric sensor(at least one of 131 a to 131 c) is ended or paused, the processor 140and/or 150, for example, may restore the black state of the screen area129 to a low gradation state by a gradation value corresponding to thebrightness adjusting function of the electronic device 100. Based onthis, the processor 140 and/or 150 may restrain generation of deviationfor a mutual area by maintaining the life spans of the pixelscorresponding to the area of the interface 127 and the screen area 129.

FIG. 7 is a drawing illustrating an electronic device in a networkenvironment according to an embodiment.

An electronic device 701 in a network environment 700 according tovarious embodiments of the present disclosure will be described withreference to FIG. 7. The electronic device 701 may include a bus 710, aprocessor 720, a memory 730, an input/output interface 750, a display760, and a communication interface 770. In various embodiments of thepresent disclosure, at least one of the foregoing elements may beomitted or another element may be added to the electronic device 701.

The bus 710 may include a circuit for connecting the above-mentionedelements 710 to 770 to each other and transferring communications (e.g.,control messages and/or data) among the above-mentioned elements.

The processor 720 may include at least one of a central processing unit(CPU), an application processor (AP), or a communication processor (CP).The processor 720 may perform data processing or an operation related tocommunication and/or control of at least one of the other elements ofthe electronic device 701.

The memory 730 may include a volatile memory and/or a nonvolatilememory. The memory 730 may store instructions or data related to atleast one of the other elements of the electronic device 701. Accordingto an embodiment of the present disclosure, the memory 730 may storesoftware and/or a program 740. The program 740 may include, for example,a kernel 741, a middleware 743, an application programming interface(API) 745, and/or an application program (or an application) 747. Atleast a portion of the kernel 741, the middleware 743, or the API 745may be referred to as an operating system (OS).

The kernel 741 may control or manage system resources (e.g., the bus710, the processor 720, the memory 730, or the like) used to performoperations or functions of other programs (e.g., the middleware 743, theAPI 745, or the application program 747). Furthermore, the kernel 741may provide an interface for allowing the middleware 743, the API 745,or the application program 747 to access individual elements of theelectronic device 701 in order to control or manage the systemresources.

The middleware 743 may serve as an intermediary so that the API 745 orthe application program 747 communicates and exchanges data with thekernel 741.

Furthermore, the middleware 743 may handle one or more task requestsreceived from the application program 747 according to a priority order.For example, the middleware 743 may assign at least one applicationprogram 747 a priority for using the system resources (e.g., the bus710, the processor 720, the memory 730, or the like) of the electronicdevice 701. For example, the middleware 743 may handle the one or moretask requests according to the priority assigned to the at least oneapplication, thereby performing scheduling or load balancing withrespect to the one or more task requests.

The API 745, which is an interface for allowing the application 747 tocontrol a function provided by the kernel 741 or the middleware 743, mayinclude, for example, at least one interface or function (e.g.,instructions) for file control, window control, image processing,character control, or the like.

The input/output interface 750 may serve to transfer an instruction ordata input from a user or another external device to (an)otherelement(s) of the electronic device 701. Furthermore, the input/outputinterface 750 may output instructions or data received from (an)otherelement(s) of the electronic device 701 to the user or another externaldevice.

The display 760 may include, for example, a liquid crystal display(LCD), a light-emitting diode (LED) display, an organic light-emittingdiode (OLED) display, a microelectromechanical systems (MEMS) display,or an electronic paper display. The display 760 may present variouscontent (e.g., a text, an image, a video, an icon, a symbol, or thelike) to the user. The display 760 may include a touch screen, and mayreceive a touch, gesture, proximity or hovering input from an electronicpen or a part of a body of the user.

The communication interface 770 may set communications between theelectronic device 701 and an external device (e.g., a first externalelectronic device 702, a second external electronic device 704, or aserver 706). For example, the communication interface 770 may beconnected to a network 762 via wireless communications or wiredcommunications so as to communicate with the external device (e.g., thesecond external electronic device 704 or the server 706).

The wireless communications may employ at least one of cellularcommunication protocols such as long-term evolution (LTE), LTE-advance(LTE-A), code division multiple access (CDMA), wideband CDMA (WCDMA),universal mobile telecommunications system (UMTS), wireless broadband(WiBro), or global system for mobile communications (GSM). The wirelesscommunications may include, for example, a short-range communications764. The short-range communications may include at least one of wirelessfidelity (Wi-Fi), Bluetooth, near field communication (NFC), magneticstripe transmission (MST), or GNSS.

The MST may generate pulses according to transmission data and thepulses may generate electromagnetic signals. The electronic device 701may transmit the electromagnetic signals to a reader device such as aPOS (point of sales) device. The POS device may detect the magneticsignals by using a MST reader and restore data by converting thedetected electromagnetic signals into electrical signals.

The GNSS may include, for example, at least one of global positioningsystem (GPS), global navigation satellite system (GLONASS), BeiDounavigation satellite system (BeiDou), or Galileo, the European globalsatellite-based navigation system according to a use area or abandwidth. Hereinafter, the term “GPS” and the term “GNSS” may beinterchangeably used. The wired communications may include at least oneof universal serial bus (USB), high definition multimedia interface(HDMI), recommended standard 232 (RS-232), plain old telephone service(POTS), or the like. The network 762 may include at least one oftelecommunications networks, for example, a computer network (e.g.,local area network (LAN) or wide area network (WAN)), the Internet, or atelephone network.

The types of the first external electronic device 702 and the secondexternal electronic device 704 may be the same as or different from thetype of the electronic device 701. According to an embodiment of thepresent disclosure, the server 706 may include a group of one or moreservers. A portion or all of operations performed in the electronicdevice 701 may be performed in one or more other electronic devices(e.g., the first external electronic device 702, the second externalelectronic device 704, or the server 706). When the electronic device701 should perform a certain function or service automatically or inresponse to a request, the electronic device 701 may request at least aportion of functions related to the function or service from anotherdevice (e.g., the first external electronic device 702, the secondexternal electronic device 704, or the server 706) instead of or inaddition to performing the function or service for itself. The otherelectronic device (e.g., the first external electronic device 702, thesecond external electronic device 704, or the server 706) may performthe requested function or additional function, and may transfer a resultof the performance to the electronic device 701. The electronic device701 may use a received result itself or additionally process thereceived result to provide the requested function or service. To thisend, for example, a cloud computing technology, a distributed computingtechnology, or a client-server computing technology may be used.

FIG. 8 is a block diagram illustrating an electronic device according toan embodiment.

Referring to FIG. 8, the electronic device 801 may include, for example,all or part of an electronic device 701 shown in FIG. 7. The electronicdevice 801 may include one or more processors 810 (e.g., applicationprocessors (APs)), a communication module 820, a subscriberidentification module (SIM) 829, a memory 830, a security module 836, asensor module 840, an input device 850, a display 860, an interface 870,an audio module 880, a camera module 891, a power management module 895,a battery 896, an indicator 897, and a motor 898.

The processor 810 may drive, for example, an operating system (OS) or anapplication program to control a plurality of hardware or softwarecomponents connected thereto and may process and compute a variety ofdata. The processor 810 may be implemented with, for example, a systemon chip (SoC). According to an embodiment of the present disclosure, theprocessor 810 may include a graphic processing unit (GPU) (not shown)and/or an image signal processor (not shown). The processor 810 mayinclude at least some (e.g., a cellular module 821) of the componentsshown in FIG. 8. The processor 810 may load a command or data receivedfrom at least one of other components (e.g., a non-volatile memory) intoa volatile memory to process the data and may store various data in anon-volatile memory.

The communication module 820 may have the same or similar configurationto the communication interface 770 of FIG. 7. The communication module820 may include, for example, the cellular module 821, awireless-fidelity (Wi-Fi) module 822, a Bluetooth (BT) module 823, aglobal navigation satellite system (GNSS) module 824 (e.g., a GPSmodule, a Glonass module, a Beidou module, or a Galileo module), a nearfield communication (NFC) module 825, an MST module 826, and a radiofrequency (RF) module 827.

The cellular module 821 may provide, for example, a voice call service,a video call service, a text message service, or an Internet service,and the like through a communication network. According to an embodimentof the present disclosure, the cellular module 821 may identify andauthenticate the electronic device 801 in a communication network usingthe SIM 829 (e.g., a SIM card). According to an embodiment of thepresent disclosure, the cellular module 821 may perform at least part offunctions which may be provided by the processor 810. According to anembodiment of the present disclosure, the cellular module 821 mayinclude a communication processor (CP).

The Wi-Fi module 822, the BT module 823, the GNSS module 824, the NFCmodule 825, or the MST module 826 may include, for example, a processorfor processing data transmitted and received through the correspondingmodule. According to various embodiments of the present disclosure, atleast some (e.g., two or more) of the cellular module 821, the Wi-Fimodule 822, the BT module 823, the GNSS module 824, the NFC module 825,or the MST module 826 may be included in one integrated chip (IC) or oneIC package.

The RF module 827 may transmit and receive, for example, a communicationsignal (e.g., an RF signal). Though not shown, the RF module 827 mayinclude, for example, a transceiver, a power amplifier module (PAM), afrequency filter, or a low noise amplifier (LNA), or an antenna, and thelike. According to another embodiment of the present disclosure, atleast one of the cellular module 821, the Wi-Fi module 822, the BTmodule 823, the GNSS module 824, the NFC module 825, or the MST module826 may transmit and receive an RF signal through a separate RF module.

The SIM 829 may include, for example, a card which includes a SIM and/oran embedded SIM. The SIM 829 may include unique identificationinformation (e.g., an integrated circuit card identifier (ICCID)) orsubscriber information (e.g., an international mobile subscriberidentity (IMSI)).

The memory 830 (e.g., a memory 730 of FIG. 7) may include, for example,an embedded memory 832 or an external memory 834. The embedded memory832 may include at least one of, for example, a volatile memory (e.g., adynamic random access memory (DRAM), a static RAM (SRAM), a synchronousdynamic RAM (SDRAM), and the like), or a non-volatile memory (e.g., aone-time programmable read only memory (OTPROM), a programmable ROM(PROM), an erasable and programmable ROM (EPROM), an electricallyerasable and programmable ROM (EEPROM), a mask ROM, a flash ROM, a flashmemory (e.g., a NAND flash memory or a NOR flash memory, and the like),a hard drive, or a solid state drive (SSD)).

The external memory 834 may include a flash drive, for example, acompact flash (CF), a secure digital (SD), a micro-SD, a mini-SD, anextreme digital (xD), a multimedia car (MMC), or a memory stick, and thelike. The external memory 834 may operatively and/or physically connectwith the electronic device 801 through various interfaces.

The security module 836 may be a module which has a relatively highersecure level than the memory 830 and may be a circuit which storessecure data and guarantees a protected execution environment. Thesecurity module 836 may be implemented with a separate circuit and mayinclude a separate processor. The security module 836 may include, forexample, an embedded secure element (eSE) which is present in aremovable smart chip or a removable SD card or is embedded in a fixedchip of the electronic device 801. Also, the security module 836 may bedriven by an OS different from the OS of the electronic device 801. Forexample, the security module 836 may operate based on a java card openplatform (JCOP) OS.

The sensor module 840 may measure, for example, a physical quantity ormay detect an operation state of the electronic device 801, and mayconvert the measured or detected information to an electric signal. Thesensor module 840 may include at least one of, for example, a gesturesensor 840A, a gyro sensor 840B, a barometric pressure sensor 840C, amagnetic sensor 840D, an acceleration sensor 840E, a grip sensor 840F, aproximity sensor 840G, a color sensor 840H (e.g., red, green, blue (RGB)sensor), a biometric sensor 8401, a temperature/humidity sensor 840J, anillumination sensor 840K, or an ultraviolet (UV) sensor 840M.Additionally or alternatively, the sensor module 840 may furtherinclude, for example, an e-nose sensor (not shown), an electromyography(EMG) sensor (not shown), an electroencephalogram (EEG) sensor (notshown), an electrocardiogram (ECG) sensor (not shown), an infrared (IR)sensor (not shown), an iris sensor (not shown), and/or a fingerprintsensor (not shown), and the like. The sensor module 840 may furtherinclude a control circuit for controlling at least one or more sensorsincluded therein. According to various embodiments of the presentdisclosure, the electronic device 801 may further include a processorconfigured to control the sensor module 840, as part of the processor810 or to be independent of the processor 810. While the processor 810is in a sleep state, the electronic device 801 may control the sensormodule 840.

The input device 850 may include, for example, a touch panel 852, a(digital) pen sensor 854, a key 856, or an ultrasonic input device 858.The touch panel 852 may use at least one of, for example, a capacitivetype, a resistive type, an infrared type, or an ultrasonic type. Also,the touch panel 852 may further include a control circuit. The touchpanel 852 may further include a tactile layer and may provide a tactilereaction to a user.

The (digital) pen sensor 854 may be, for example, part of the touchpanel 852 or may include a separate sheet for recognition. The key 856may include, for example, a physical button, an optical key, or akeypad. The ultrasonic input device 858 may allow the electronic device801 to detect a sound wave using a microphone (e.g., a microphone 888)and to verify data through an input tool generating an ultrasonicsignal.

The display 860 (e.g., a display 760 of FIG. 7) may include a panel 862,a hologram device 864, or a projector 866. The panel 862 may include thesame or similar configuration to the display 760. The panel 862 may beimplemented to be, for example, flexible, transparent, or wearable. Thepanel 862 and the touch panel 852 may be integrated into one module. Thehologram device 864 may show a stereoscopic image in a space usinginterference of light. The projector 866 may project light onto a screento display an image. The screen may be positioned, for example, insideor outside the electronic device 801. According to an embodiment of thepresent disclosure, the display 860 may further include a controlcircuit for controlling the panel 862, the hologram device 864, or theprojector 866.

The interface 870 may include, for example, a high-definition multimediainterface (HDMI) 872, a universal serial bus (USB) 874, an opticalinterface 876, or a D-subminiature 878. The interface 870 may beincluded in, for example, the communication interface 770 shown in FIG.7. Additionally or alternatively, the interface 870 may include, forexample, a mobile high definition link (MHL) interface, an SDcard/multimedia card (MMC) interface, or an infrared data association(IrDA) standard interface.

The audio module 880 may convert a sound and an electric signal in dualdirections. At least part of components of the audio module 880 may beincluded in, for example, an input/output interface 750 (or a userinterface) shown in FIG. 7. The audio module 880 may process soundinformation input or output through, for example, a speaker 882, areceiver 884, an earphone 886, or the microphone 888, and the like.

The camera module 891 may be a device which captures a still image and amoving image. According to an embodiment of the present disclosure, thecamera module 891 may include one or more image sensors (not shown)(e.g., a front sensor or a rear sensor), a lens (not shown), an imagesignal processor (ISP) (not shown), or a flash (not shown) (e.g., an LEDor a xenon lamp).

The power management module 895 may manage, for example, power of theelectronic device 801. According to an embodiment of the presentdisclosure, though not shown, the power management module 895 mayinclude a power management integrated circuit (PMIC), a charger IC or abattery or fuel gauge. The PMIC may have a wired charging method and/ora wireless charging method. The wireless charging method may include,for example, a magnetic resonance method, a magnetic induction method,or an electromagnetic method, and the like. An additional circuit forwireless charging, for example, a coil loop, a resonance circuit, or arectifier, and the like may be further provided. The battery gauge maymeasure, for example, the remaining capacity of the battery 896 andvoltage, current, or temperature thereof while the battery 896 ischarged. The battery 896 may include, for example, a rechargeablebattery or a solar battery.

The indicator 897 may display a specific state of the electronic device801 or part (e.g., the processor 810) thereof, for example, a bootingstate, a message state, or a charging state, and the like. The motor 898may convert an electric signal into mechanical vibration and maygenerate vibration or a haptic effect, and the like. Though not shown,the electronic device 801 may include a processing unit (e.g., a GPU)for supporting a mobile TV. The processing unit for supporting themobile TV may process media data according to standards, for example, adigital multimedia broadcasting (DMB) standard, a digital videobroadcasting (DVB) standard, or a MediaFLO™ standard, and the like.

Each of the above-mentioned elements of the electronic device accordingto various embodiments of the present disclosure may be configured withone or more components, and names of the corresponding elements may bechanged according to the type of the electronic device. The electronicdevice according to various embodiments of the present disclosure mayinclude at least one of the above-mentioned elements, some elements maybe omitted from the electronic device, or other additional elements maybe further included in the electronic device. Also, some of the elementsof the electronic device according to various embodiments of the presentdisclosure may be combined with each other to form one entity, therebymaking it possible to perform the functions of the correspondingelements in the same manner as before the combination.

FIG. 9 is a block diagram illustrating a program module according to anembodiment.

According to an embodiment of the present disclosure, the program module910 (e.g., a program 740 of FIG. 7) may include an operating system (OS)for controlling resources associated with an electronic device (e.g., anelectronic device 701 of FIG. 7) and/or various applications (e.g., anapplication program 747 of FIG. 7) which are executed on the OS. The OSmay be, for example, Android, iOS, Windows, Symbian, Tizen, or Bada, andthe like.

The program module 910 may include a kernel 920, a middleware 930, anapplication programming interface (API) 960, and/or an application 970.At least part of the program module 910 may be preloaded on theelectronic device, or may be downloaded from an external electronicdevice (e.g., a first external electronic device 702, a second externalelectronic device 704, or a server 706, and the like of FIG. 7).

The kernel 920 (e.g., a kernel 741 of FIG. 7) may include, for example,a system resource manager 921 and/or a device driver 923. The systemresource manager 921 may control, assign, or collect, and the likesystem resources. According to an embodiment of the present disclosure,the system resource manager 921 may include a process management unit, amemory management unit, or a file system management unit, and the like.The device driver 923 may include, for example, a display driver, acamera driver, a Bluetooth (BT) driver, a shared memory driver, auniversal serial bus (USB) driver, a keypad driver, a wireless-fidelity(Wi-Fi) driver, an audio driver, or an inter-process communication (IPC)driver.

The middleware 930 (e.g., a middleware 743 of FIG. 7) may provide, forexample, functions the application 970 needs in common, and may providevarious functions to the application 970 through the API 960 such thatthe application 970 efficiently uses limited system resources in theelectronic device. According to an embodiment of the present disclosure,the middleware 930 (e.g., the middleware 743) may include at least oneof a runtime library 935, an application manager 941, a window manager942, a multimedia manager 943, a resource manager 944, a power manager945, a database manager 946, a package manager 947, a connectivitymanager 948, a notification manager 949, a location manager 950, agraphic manager 951, a security manager 952, or a payment manager 954.

The runtime library 935 may include, for example, a library module usedby a compiler to add a new function through a programming language whilethe application 970 is executed. The runtime library 935 may perform afunction about input and output management, memory management, or anarithmetic function.

The application manager 941 may manage, for example, a life cycle of atleast one of the application 970. The window manager 942 may managegraphic user interface (GUI) resources used on a screen of theelectronic device. The multimedia manager 943 may determine a formatutilized for reproducing various media files and may encode or decode amedia file using a codec corresponding to the corresponding format. Theresource manager 944 may manage source codes of at least one of theapplication 970, and may manage resources of a memory or a storagespace, and the like.

The power manager 945 may act together with, for example, a basicinput/output system (BIOS) and the like, may manage a battery or a powersource, and may provide power information utilized for an operation ofthe electronic device. The database manager 946 may generate, search, orchange a database to be used in at least one of the application 970. Thepackage manager 947 may manage installation or update of an applicationdistributed by a type of a package file.

The connectivity manager 948 may manage, for example, wirelessconnection such as Wi-Fi connection or BT connection, and the like. Thenotification manager 949 may display or notify events, such as anarrival message, an appointment, and proximity notification, by a methodwhich is not disturbed to the user. The location manager 950 may managelocation information of the electronic device. The graphic manager 951may manage a graphic effect to be provided to the user or a userinterface (UI) related to the graphic effect. The security manager 952may provide all security functions utilized for system security or userauthentication, and the like. According to an embodiment of the presentdisclosure, when the electronic device (e.g., an electronic device 701of FIG. 7) has a phone function, the middleware 930 may further includea telephony manager (not shown) for managing a voice or videocommunication function of the electronic device.

The middleware 930 may include a middleware module which configurescombinations of various functions of the above-described components. Themiddleware 930 may provide a module which specializes according to kindsof OSs to provide a differentiated function. Also, the middleware 930may dynamically delete some of old components or may add new components.

The API 960 (e.g., an API 745 of FIG. 7) may be, for example, a set ofAPI programming functions, and may be provided with different componentsaccording to OSs. For example, in case of Android or iOS, one API setmay be provided according to platforms. In case of Tizen, two or moreAPI sets may be provided according to platforms.

The application 970 (e.g., an application program 747 of FIG. 7) mayinclude one or more of, for example, a home application 971, a dialerapplication 972, a short message service/multimedia message service(SMS/MMS) application 973, an instant message (IM) application 974, abrowser application 975, a camera application 976, an alarm application977, a contact application 978, a voice dial application 979, an e-mailapplication 980, a calendar application 981, a media player application982, an album application 983, a clock application 984, a paymentapplication 985, a health care application (e.g., an application formeasuring quantity of exercise or blood sugar, and the like), or anenvironment information application (e.g., an application for providingatmospheric pressure information, humidity information, or temperatureinformation, and the like), and the like.

According to an embodiment of the present disclosure, the application970 may include an application (hereinafter, for better understandingand ease of description, referred to as “information exchangeapplication”) for exchanging information between the electronic device(e.g., the electronic device 701 of FIG. 7) and an external electronicdevice (e.g., the first external electronic device 702 or the secondexternal electronic device 704). The information exchange applicationmay include, for example, a notification relay application fortransmitting specific information to the external electronic device or adevice management application for managing the external electronicdevice.

For example, the notification relay application may include a functionof transmitting notification information, which is generated by otherapplications (e.g., the SMS/MMS application, the e-mail application, thehealth care application, or the environment information application, andthe like) of the electronic device, to the external electronic device(e.g., the first external electronic device 702 or the second externalelectronic device 704). Also, the notification relay application mayreceive, for example, notification information from the externalelectronic device, and may provide the received notification informationto the user of the electronic device.

The device management application may manage (e.g., install, delete, orupdate), for example, at least one (e.g., a function of turning on/offthe external electronic device itself (or partial components) or afunction of adjusting brightness (or resolution) of a display) offunctions of the external electronic device (e.g., the first externalelectronic device 702 or the second external electronic device 704)which communicates with the electronic device, an application whichoperates in the external electronic device, or a service (e.g., a callservice or a message service) provided from the external electronicdevice.

According to an embodiment of the present disclosure, the application970 may include an application (e.g., the health card application of amobile medical device) which is preset according to attributes of theexternal electronic device (e.g., the first external electronic device702 or the second external electronic device 704). According to anembodiment of the present disclosure, the application 970 may include anapplication received from the external electronic device (e.g., theserver 706, the first external electronic device 702, or the secondexternal electronic device 704). According to an embodiment of thepresent disclosure, the application 970 may include a preloadedapplication or a third party application which may be downloaded from aserver. Names of the components of the program module 910 according tovarious embodiments of the present disclosure may differ according tokinds of OSs.

According to various embodiments of the present disclosure, at leastpart of the program module 910 may be implemented with software,firmware, hardware, or at least two or more combinations thereof. Atleast part of the program module 910 may be implemented (e.g., executed)by, for example, a processor (e.g., a processor 810). At least part ofthe program module 910 may include, for example, a module, a program, aroutine, sets of instructions, or a process, and the like for performingone or more functions.

The term “module” used herein may represent, for example, a unitincluding one of hardware, software and firmware or a combinationthereof. The term “module” may be interchangeably used with the terms“unit”, “logic”, “logical block”, “component” and “circuit”. The“module” may be a minimum unit of an integrated component or may be apart thereof. The “module” may be a minimum unit for performing one ormore functions or a part thereof. The “module” may be implementedmechanically or electronically. For example, the “module” may include atleast one of an application-specific integrated circuit (ASIC) chip, afield-programmable gate array (FPGA), and a programmable-logic devicefor performing some operations, which are known or will be developed.

At least a part of devices (e.g., modules or functions thereof) ormethods (e.g., operations) according to various embodiments of thepresent disclosure may be implemented as instructions stored in acomputer-readable storage medium in the form of a program module. In thecase where the instructions are performed by a processor (e.g., theprocessor 720), the processor may perform functions corresponding to theinstructions. The computer-readable storage medium may be, for example,the memory 730.

A computer-readable recording medium may include a hard disk, a floppydisk, a magnetic medium (e.g., a magnetic tape), an optical medium(e.g., CD-ROM, digital versatile disc (DVD)), a magneto-optical medium(e.g., a floptical disk), or a hardware device (e.g., a ROM, a RAM, aflash memory, or the like). The program instructions may include machinelanguage codes generated by compilers and high-level language codes thatcan be executed by computers using interpreters. The above-mentionedhardware device may be configured to be operated as one or more softwaremodules for performing operations of various embodiments of the presentdisclosure and vice versa.

A module or a program module according to various embodiments of thepresent disclosure may include at least one of the above-mentionedelements, or some elements may be omitted or other additional elementsmay be added. Operations performed by the module, the program module orother elements according to various embodiments of the presentdisclosure may be performed in a sequential, parallel, iterative orheuristic way. Furthermore, some operations may be performed in anotherorder or may be omitted, or other operations may be added.

While the present disclosure has been shown and described with referenceto various embodiments thereof, it will be understood by those skilledin the art that various changes in form and details may be made thereinwithout departing from the present disclosure as defined by the appendedclaims and their equivalents.

What is claimed is:
 1. An electronic device, comprising: a displayincluding a plurality of pixels; a biometric sensor disposed below thedisplay such that contacts within a biometric sensing area of thedisplay are detectable by the biometric sensor through the display; andat least one processor electrically connected to the display and thebiometric sensor, wherein the processor is configured to: when a touchinput is detected to the display within the biometric sensing area,increase a brightness of a first pixel group within the biometricsensing area to a first brightness level, and execute at least one ofmaintaining and changing display of a second pixel group outside thebiometric sensing area, wherein the at least one of maintaining andchanging display of the second pixel group includes one of: executing ablack state in which display through the second pixel group is disabled,and changing a display attribute for the second pixel group such that aload on the second pixel group is reduced.
 2. The electronic device ofclaim 1, wherein increasing the brightness of the first pixel groupincludes increasing an amount of electric power supplied to the firstpixel group.
 3. The electronic device of claim 1, wherein the load onthe second pixel group is reduced by changing a specific gradation valueof display for the second pixel group.
 4. The electronic device of claim1, further comprising a display driver integrated circuit (IC) disposedadjacent to the biometric sensing area of the display, wherein thedisplay is further configured such that voltage supplied to regions ofthe display is reduced according to a distance a particular region isdisposed from the display driver IC, and wherein the at least one ofmaintaining and changing display of the second pixel group to theexecuted black state or the changed display attribute causes increase ofthe brightness of the first pixel group based on the reduced voltage. 5.The electronic device of claim 1, wherein the processor is configuredto: detect a signal indicating an approach of an object to the biometricsensing area of the display; retrieve previously-stored imageinformation corresponding to the object based on at least a part of thesignal; and perform authentication of the object by comparison with theretrieved image information.
 6. The electronic device of claim 1,further comprising: an illumination sensor configured to detect anintensity of illumination, wherein the brightness of a first pixel groupis increased to the first brightness level when an intensity ofenvironmental illumination as detected by the illumination sensorexceeds a prespecified value.
 7. The electronic device of claim 1,wherein the processor is configured to: control minimization of anAMOLED off ratio (AOR) for the display while the brightness of the firstpixel group is increased to the first brightness level.
 8. An electronicdevice comprising: a display; a biometric sensor disposed below thedisplay such that contacts within a biometric sensing area of thedisplay are detectable by the biometric sensor through the display; anda processor electrically connected to the display and the biometricsensor, wherein the processor is configured to: alter display within thebiometric sensing area to use a first display attribute; responsive todetecting an approach of an object to the biometric sensing area whilethe first display attribute is used, altering at least a partial displayarea external to the biometric sensing area to use a second displayattribute; detect a signal corresponding to the object using thebiometric sensor while the second display attribute is applied to the atleast the partial area; and authenticate the object based at least onthe detected signal.
 9. The electronic device of claim 8, wherein theprocessor is configured to: responsive to detecting the signal, alteringdisplay within at least a partial area of the biometric sensing area touse a third display attribute, wherein the signal is detected whiledisplay within the at least partial area of the biometric sensing areais altered using the third display attribute.
 10. The electronic deviceof claim 9, wherein the first display attribute, the second displayattribute and the third display attribute each include at least one ofmodifying a brightness, modifying a gradation, and modifying a level ofelectric power supplied to the display.
 11. The electronic device ofclaim 9, wherein the processor is configured to: retrievepreviously-stored image information corresponding to the object based onat least a part of the detected signal; and perform authentication bycomparison with at least a part of the retrieved image information. 12.The electronic device of claim 11, wherein when the image information isretrieved, display within the biometric sensing area is altered to usethe first display attribute if the image information satisfies aspecific condition.
 13. The electronic device of claim 12, wherein theprocessor is configured to: detect a second signal corresponding to theobject while the first display attribute is applied to the at least thepartial area; retrieve a second image information corresponding to theobject based on the second signal, wherein authenticating the object isfurther performed using the second image information.
 14. The electronicdevice of claim 10, further comprising: an illumination sensorconfigured to detect an intensity of illumination, wherein the processoris configured to: apply the second display attribute or the thirddisplay attribute to a region of the display based at least in part ofthe intensity of illumination detected by the illumination sensor. 15.The electronic device of claim 8, wherein a time at which the signalcorresponding to the object is detected is synchronized to a time atwhich at least one pixel disposed within the biometric sensing area iscontrolled to emit light.
 16. The electronic device of claim 10, whereinthe processor is configured to: adjust an AMOLED off ratio (AOR) for thedisplay while the at least the partial area of the biometric sensingarea is altered to use the third display attribute.
 17. The electronicdevice of claim 8, wherein altering display within the biometric sensingarea to use the first display attribute further includes display agraphic element within at least a portion of the biometric sensing area,and wherein the partial display area external to the biometric sensingarea at least partially surrounds the biometric sensing area.
 18. Anelectronic, device comprising: a display; a sensor; a biometric sensordisposed below the display such that contacts within a biometric sensingarea of the display are detectable by the biometric sensor through thedisplay; a display driver integrated circuit (IC) configured to controlthe display; and a processor electrically connected to the display, thebiometric sensor, and the display driver IC, wherein the processor isconfigured to: detect a user input through the biometric sensing area,identify situation information using the sensor, when the situationinformation satisfies a first condition, set at least a portion of thedisplay to use a first display attribute by the display driver IC, andacquire a fingerprint from the detected the user input using thebiometric sensor based on the first display attribute, and when thesituation information satisfies a second condition, set the at least theportion of the display to use a second display attribute by the displaydriver IC, and acquire the fingerprint from the detected user inputusing the biometric sensor based on the second display attribute. 19.The electronic device of claim 18, wherein the sensor includes at leastone of an illumination sensor and a temperature sensor, and whereinidentifying the situation information further comprises at least one ofdetecting an intensity of illumination through the illumination sensorand detecting a present temperature through the temperature sensor. 20.The electronic device of claim 18, wherein the situation information isidentified responsive to detecting a request to acquire the biometricinformation.